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Bird List

Updated ~2 days ago
517 All Years 401 This Year 2024 273 This Month Jun 2024
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  1. Species Name
    Count
    Date
    Observer
    Location

Native and Naturalized (400)

  1. Ruby-crowned Kinglet Corthylio calendula
    # Count: 2
    Date:
    Observer: Joy Fulk
    Location: Pull-out Cochetopa Creek-11977–12081 SH-114, Gunnison US-CO 38.33723, -106.77392 Saguache
  2. American Robin Turdus migratorius
    # Count: 2
    Date:
    Observer: Joy Fulk
    Location: Pull-out Cochetopa Creek-11977–12081 SH-114, Gunnison US-CO 38.33723, -106.77392 Saguache
  3. Pine Siskin Spinus pinus
    # Count: 1
    Date:
    Observer: Joy Fulk
    Location: Pull-out Cochetopa Creek-11977–12081 SH-114, Gunnison US-CO 38.33723, -106.77392 Saguache
  4. Yellow Warbler Setophaga petechia
    # Count: 1
    Date:
    Observer: Joy Fulk
    Location: Pull-out Cochetopa Creek-11977–12081 SH-114, Gunnison US-CO 38.33723, -106.77392 Saguache
  5. Yellow-rumped Warbler Setophaga coronata
    # Count: 1
    Date:
    Observer: Joy Fulk
    Location: Pull-out Cochetopa Creek-11977–12081 SH-114, Gunnison US-CO 38.33723, -106.77392 Saguache
  6. Eurasian Collared-Dove Streptopelia decaocto
    # Count: 1
    Date:
    Observer: Kelly Baker
    Location: 7980 Needlegrass Lane, Colorado Springs, Colorado, US (38.946, -104.882) El Paso
  7. Warbling Vireo Vireo gilvus
    # Count: 1
    Date:
    Observer: Joy Fulk
    Location: North Cochetopa Pass-22450–23746 SH-114, Saguache US-CO 38.21400, -106.57260 Saguache
  8. Mourning Dove Zenaida macroura
    # Count: 3
    Date:
    Observer: Joan Grant
    Location: South Republican SWA--south side Yuma
  9. Turkey Vulture Cathartes aura
    # Count: 3
    Date:
    Observer: Joan Grant
    Location: South Republican SWA--south side Yuma
  10. Red-headed Woodpecker Melanerpes erythrocephalus
    # Count: 4
    Date:
    Observer: Joan Grant
    Location: South Republican SWA--south side Yuma
  11. Western Kingbird Tyrannus verticalis
    # Count: 2
    Date:
    Observer: Joan Grant
    Location: South Republican SWA--south side Yuma
  12. Blue Jay Cyanocitta cristata
    # Count: 1
    Date:
    Observer: Joan Grant
    Location: South Republican SWA--south side Yuma
  13. House Wren Troglodytes aedon
    # Count: 1
    Date:
    Observer: Joan Grant
    Location: South Republican SWA--south side Yuma
  14. European Starling Sturnus vulgaris
    # Count: 1
    Date:
    Observer: Joan Grant
    Location: South Republican SWA--south side Yuma
  15. American Goldfinch Spinus tristis
    # Count: 2
    Date:
    Observer: Joan Grant
    Location: South Republican SWA--south side Yuma
  16. Western Meadowlark Sturnella neglecta
    # Count: 3
    Date:
    Observer: Joan Grant
    Location: South Republican SWA--south side Yuma
  17. Red-winged Blackbird Agelaius phoeniceus
    # Count: 1
    Date:
    Observer: Joan Grant
    Location: South Republican SWA--south side Yuma
  18. Common Grackle Quiscalus quiscula
    # Count: 2
    Date:
    Observer: Joan Grant
    Location: South Republican SWA--south side Yuma
  19. Common Yellowthroat Geothlypis trichas
    # Count: 1
    Date:
    Observer: Joan Grant
    Location: South Republican SWA--south side Yuma
  20. House Finch Haemorhous mexicanus
    # Count: 1
    Date:
    Observer: Slaiman Hadi
    Location: 4801–4815 Fifth St, Boulder US-CO 40.06303, -105.28855 Boulder
  21. Brewer's Blackbird Euphagus cyanocephalus
    # Count: 3
    Date:
    Observer: Slaiman Hadi
    Location: 4801–4815 Fifth St, Boulder US-CO 40.06303, -105.28855 Boulder
  22. Western Flycatcher Empidonax difficilis
    # Count: 1
    Date:
    Observer: Joanna Moreno
    Location: 11560 Penny Rd, Conifer US-CO 39.50598, -105.34146 Jefferson
  23. Common Merganser Mergus merganser
    # Count: 1
    Date:
    Observer: Deanna Einspahr
    Location: Steamboat Lake SP Routt
  24. Broad-tailed Hummingbird Selasphorus platycercus
    # Count: 2
    Date:
    Observer: Deanna Einspahr
    Location: Steamboat Lake SP Routt
  25. American White Pelican Pelecanus erythrorhynchos
    # Count: 1
    Date:
    Observer: Deanna Einspahr
    Location: Steamboat Lake SP Routt
  26. American Crow Corvus brachyrhynchos
    # Count: 4
    Date:
    Observer: Deanna Einspahr
    Location: Steamboat Lake SP Routt
  27. White-crowned Sparrow Zonotrichia leucophrys
    # Count: 4
    Date:
    Observer: Deanna Einspahr
    Location: Steamboat Lake SP Routt
  28. Redhead Aythya americana
    # Count: 5
    Date:
    Observer: Tamara Massong
    Location: Echo Lake Archuleta
  29. American Coot Fulica americana
    # Count: 25
    Date:
    Observer: Tamara Massong
    Location: Echo Lake Archuleta
  30. Osprey Pandion haliaetus
    # Count: 1
    Date:
    Observer: Tamara Massong
    Location: Echo Lake Archuleta
  31. Bald Eagle Haliaeetus leucocephalus
    # Count: 1
    Date:
    Observer: Tamara Massong
    Location: Echo Lake Archuleta
  32. Red-tailed Hawk Buteo jamaicensis
    # Count: 1
    Date:
    Observer: Tamara Massong
    Location: Echo Lake Archuleta
  33. Yellow-headed Blackbird Xanthocephalus xanthocephalus
    # Count: 4
    Date:
    Observer: Tamara Massong
    Location: Echo Lake Archuleta
  34. Canada Goose Branta canadensis
    # Count: 5
    Date:
    Observer: Brian Genge
    Location: Broomfield Community Park Broomfield
  35. Mallard Anas platyrhynchos
    # Count: 4
    Date:
    Observer: Brian Genge
    Location: Broomfield Community Park Broomfield
  36. Rock Pigeon Columba livia
    # Count: 2
    Date:
    Observer: Brian Genge
    Location: Broomfield Community Park Broomfield
  37. Killdeer Charadrius vociferus
    # Count: 4
    Date:
    Observer: Brian Genge
    Location: Broomfield Community Park Broomfield
  38. Northern Flicker Colaptes auratus
    # Count: 1
    Date:
    Observer: Ryan Corda🦉
    Location: Neighborhood Walk Denver
  39. Black-capped Chickadee Poecile atricapillus
    # Count: 1
    Date:
    Observer: Ryan Corda🦉
    Location: Neighborhood Walk Denver
  40. Black-billed Magpie Pica hudsonia
    # Count: 1
    Date:
    Observer: Margaret Sondag
    Location: Lake Estes Larimer
  41. Violet-green Swallow Tachycineta thalassina
    # Count: 8
    Date:
    Observer: Margaret Sondag
    Location: Lake Estes Larimer
  42. Song Sparrow Melospiza melodia
    # Count: 1
    Date:
    Observer: Margaret Sondag
    Location: Lake Estes Larimer
  43. Blue-winged Teal Spatula discors
    # Count: 1
    Date:
    Observer: Gaia Stanley
    Location: Pond at Hwy. 287 & West 71st St. Larimer
  44. Cinnamon Teal Spatula cyanoptera
    # Count: 2
    Date:
    Observer: Gaia Stanley
    Location: Pond at Hwy. 287 & West 71st St. Larimer
  45. Gadwall Mareca strepera
    # Count: 5
    Date:
    Observer: Gaia Stanley
    Location: Pond at Hwy. 287 & West 71st St. Larimer
  46. American Avocet Recurvirostra americana
    # Count: 5
    Date:
    Observer: Gaia Stanley
    Location: Pond at Hwy. 287 & West 71st St. Larimer
  47. Spotted Sandpiper Actitis macularius
    # Count: 3
    Date:
    Observer: Gaia Stanley
    Location: Pond at Hwy. 287 & West 71st St. Larimer
  48. Western Wood-Pewee Contopus sordidulus
    # Count: 1
    Date:
    Observer: Ryan Dorough
    Location: Bear Creek Nature Center El Paso
  49. Red-naped Sapsucker Sphyrapicus nuchalis
    # Count: 1
    Date:
    Observer: Ron Bolton
    Location: Gold Hill (town) Boulder
  50. House Sparrow Passer domesticus
    # Count: 2
    Date:
    Observer: Erin Snowden
    Location: 4455 McGrew Cir, Widefield US-CO 38.76758, -104.75083 El Paso
  51. Lesser Goldfinch Spinus psaltria
    # Count: 3
    Date:
    Observer: Erin Snowden
    Location: 4455 McGrew Cir, Widefield US-CO 38.76758, -104.75083 El Paso
  52. Chipping Sparrow Spizella passerina
    # Count: 1
    Date:
    Observer: Erin Snowden
    Location: 4455 McGrew Cir, Widefield US-CO 38.76758, -104.75083 El Paso
  53. Green-winged Teal Anas crecca
    # Count: 2
    Date:
    Observer: Timo Mitzen
    Location: Stillwater Reservoir Garfield
  54. Lesser Scaup Aythya affinis
    # Count: 2
    Date:
    Observer: Timo Mitzen
    Location: Stillwater Reservoir Garfield
  55. Great Blue Heron Ardea herodias
    # Count: 2
    Date:
    Observer: Timo Mitzen
    Location: Stillwater Reservoir Garfield
  56. Olive-sided Flycatcher Contopus cooperi
    # Count: 1
    Date:
    Observer: Timo Mitzen
    Location: Stillwater Reservoir Garfield
  57. Dusky Flycatcher Empidonax oberholseri
    # Count: 1
    Date:
    Observer: Timo Mitzen
    Location: Stillwater Reservoir Garfield
  58. Tree Swallow Tachycineta bicolor
    # Count: 4
    Date:
    Observer: Timo Mitzen
    Location: Stillwater Reservoir Garfield
  59. Fox Sparrow Passerella iliaca
    # Count: 2
    Date:
    Observer: Timo Mitzen
    Location: Stillwater Reservoir Garfield
  60. Wilson's Warbler Cardellina pusilla
    # Count: 3
    Date:
    Observer: Timo Mitzen
    Location: Stillwater Reservoir Garfield
  61. Western Tanager Piranga ludoviciana
    # Count: 1
    Date:
    Observer: Timo Mitzen
    Location: Stillwater Reservoir Garfield
  62. Barn Swallow Hirundo rustica
    # Count: 1
    Date:
    Observer: Adam Ploegman
    Location: 3775–3785 Le Fever Dr, Fort Collins US-CO (40.5194,-105.0082) Larimer
  63. Double-crested Cormorant Nannopterum auritum
    # Count: 2
    Date:
    Observer: Laura Sheets
    Location: Mushroom Pond Open Space Adams
  64. Snowy Egret Egretta thula
    # Count: 1
    Date:
    Observer: Laura Sheets
    Location: Mushroom Pond Open Space Adams
  65. White-breasted Nuthatch Sitta carolinensis
    # Count: 1
    Date:
    Observer: Laura Sheets
    Location: Mushroom Pond Open Space Adams
  66. Northern Shoveler Spatula clypeata
    # Count: 2
    Date:
    Observer: Mark Hedden
    Location: Pawnee NG--Adams and Bunker Reservoir Number 1 Weld
  67. Eastern Kingbird Tyrannus tyrannus
    # Count: 1
    Date:
    Observer: Mark Hedden
    Location: Pawnee NG--Adams and Bunker Reservoir Number 1 Weld
  68. Horned Lark Eremophila alpestris
    # Count: 1
    Date:
    Observer: Mark Hedden
    Location: Pawnee NG--Adams and Bunker Reservoir Number 1 Weld
  69. Chimney Swift Chaetura pelagica
    # Count: 1
    Date:
    Observer: Joan Grant
    Location: Holyoke (town) Phillips
  70. Mississippi Kite Ictinia mississippiensis
    # Count: 4
    Date:
    Observer: Joan Grant
    Location: Holyoke (town) Phillips
  71. Lewis's Woodpecker Melanerpes lewis
    # Count: 1
    Date:
    Observer: Lily Kenyon
    Location: 356 Pagosa St, Pagosa Springs US-CO 37.27013, -106.99797 Archuleta
  72. Common Nighthawk Chordeiles minor
    # Count: 1
    Date:
    Observer: Mike Fernandez
    Location: 16001–16051 County Road 50, Eads US-CO (38.5060,-102.6026) Kiowa
  73. Swainson's Hawk Buteo swainsoni
    # Count: 1
    Date:
    Observer: Mike Fernandez
    Location: 16001–16051 County Road 50, Eads US-CO (38.5060,-102.6026) Kiowa
  74. Burrowing Owl Athene cunicularia
    # Count: 1
    Date:
    Observer: Mike Fernandez
    Location: 16001–16051 County Road 50, Eads US-CO (38.5060,-102.6026) Kiowa
  75. Hammond's Flycatcher Empidonax hammondii
    # Count: 1
    Date:
    Observer: John Rutenbeck
    Location: Flagstaff Amphitheater Boulder
  76. Bullock's Oriole Icterus bullockii
    # Count: 1
    Date:
    Observer: Mike Fernandez
    Location: 16001–16051 County Road 50, Eads US-CO (38.5060,-102.6026) Kiowa
  77. Mountain Chickadee Poecile gambeli
    # Count: 1
    Date:
    Observer: Mary Kay Waddington
    Location: The Ranch Custer
  78. Red-breasted Nuthatch Sitta canadensis
    # Count: 2
    Date:
    Observer: Mary Kay Waddington
    Location: The Ranch Custer
  79. Mountain Bluebird Sialia currucoides
    # Count: 1
    Date:
    Observer: Mary Kay Waddington
    Location: The Ranch Custer
  80. Ruddy Duck Oxyura jamaicensis
    # Count: 10
    Date:
    Observer: Joy Fulk
    Location: Russell Lakes SWA Saguache
  81. Pied-billed Grebe Podilymbus podiceps
    # Count: 1
    Date:
    Observer: Joy Fulk
    Location: Russell Lakes SWA Saguache
  82. Western Grebe Aechmophorus occidentalis
    # Count: 1
    Date:
    Observer: Joy Fulk
    Location: Russell Lakes SWA Saguache
  83. White-throated Swift Aeronautes saxatalis
    # Count: 2
    Date:
    Observer: Joy Fulk
    Location: Russell Lakes SWA Saguache
  84. Marsh Wren Cistothorus palustris
    # Count: 8
    Date:
    Observer: Joy Fulk
    Location: Russell Lakes SWA Saguache
  85. California Gull Larus californicus
    # Count: 2
    Date:
    Observer: Lauren Dooley
    Location: Antero Reservoir--southeast side Park
  86. Western Bluebird Sialia mexicana
    # Count: 2
    Date:
    Observer: Lauren Dooley
    Location: Antero Reservoir--southeast side Park
  87. Wild Turkey Meleagris gallopavo
    # Count: 2
    Date:
    Observer: Doug Goodwin
    Location: Sandstone Ranch Weld
  88. Common Raven Corvus corax
    # Count: 2
    Date:
    Observer: Winston Liu
    Location: Long Canyon Trail Boulder
  89. Dark-eyed Junco Junco hyemalis
    # Count: 1
    Date:
    Observer: Winston Liu
    Location: Long Canyon Trail Boulder
  90. Great-tailed Grackle Quiscalus mexicanus
    # Count: 6
    Date:
    Observer: Greg Hart
    Location: Arriba Rest Area Lincoln
  91. Black-chinned Hummingbird Archilochus alexandri
    # Count: 1
    Date:
    Observer: Steve Stachowiak
    Location: Cherry Creek SP--South End Arapahoe
  92. Spotted Towhee Pipilo maculatus
    # Count: 1
    Date:
    Observer: Steve Stachowiak
    Location: Cherry Creek SP--South End Arapahoe
  93. Yellow-breasted Chat Icteria virens
    # Count: 1
    Date:
    Observer: Steve Stachowiak
    Location: Cherry Creek SP--South End Arapahoe
  94. Lazuli Bunting Passerina amoena
    # Count: 1
    Date:
    Observer: Steve Stachowiak
    Location: Cherry Creek SP--South End Arapahoe
  95. Northern Mockingbird Mimus polyglottos
    # Count: 1
    Date:
    Observer: Sio P
    Location: South Platte Park--Carson Nature Center Arapahoe
  96. Brown-headed Cowbird Molothrus ater
    # Count: 1
    Date:
    Observer: Sio P
    Location: South Platte Park--Carson Nature Center Arapahoe
  97. Bushtit Psaltriparus minimus
    # Count: 2
    Date:
    Observer: Kevin Williams
    Location: Blm Trail 6045, Nathrop US-CO 38.75246, -106.06506 Chaffee
  98. Black-throated Gray Warbler Setophaga nigrescens
    # Count: 1
    Date:
    Observer: Kevin Williams
    Location: Blm Trail 6045, Nathrop US-CO 38.75246, -106.06506 Chaffee
  99. Plumbeous Vireo Vireo plumbeus
    # Count: 1
    Date:
    Observer: Tracy Pheneger 🪺
    Location: Long Canyon Trail Boulder
  100. Pygmy Nuthatch Sitta pygmaea
    # Count: 2
    Date:
    Observer: Tracy Pheneger 🪺
    Location: Long Canyon Trail Boulder
  101. Say's Phoebe Sayornis saya
    # Count: 1
    Date:
    Observer: Robert Doster
    Location: Home - Arvada Jefferson
  102. Cedar Waxwing Bombycilla cedrorum
    # Count: 2
    Date:
    Observer: Mark McDaniel
    Location: Home Jefferson
  103. Woodhouse's Scrub-Jay Aphelocoma woodhouseii
    # Count: 1
    Date:
    Observer: Kelly Baker
    Location: Garden of the Gods El Paso
  104. Downy Woodpecker Dryobates pubescens
    # Count: 1
    Date:
    Observer: Eve Lempriere
    Location: Niwot Loop Trail Boulder
  105. American Kestrel Falco sparverius
    # Count: 1
    Date:
    Observer: Eve Lempriere
    Location: Niwot Loop Trail Boulder
  106. Blue Grosbeak Passerina caerulea
    # Count: 1
    Date:
    Observer: Eve Lempriere
    Location: Niwot Loop Trail Boulder
  107. Gray Catbird Dumetella carolinensis
    # Count: 1
    Date:
    Observer: Don Marsh
    Location: Billy Creek SWA (Ouray Co) Ouray
  108. Clark's Grebe Aechmophorus clarkii
    # Count: 2
    Date:
    Observer: Debara Johnson
    Location: Big Bluestem Trail, Widefield US-CO 38.74375, -104.69130 El Paso
  109. Ring-billed Gull Larus delawarensis
    # Count: 1
    Date:
    Observer: Debara Johnson
    Location: Big Bluestem Trail, Widefield US-CO 38.74375, -104.69130 El Paso
  110. Willow Flycatcher Empidonax traillii
    # Count: 1
    Date:
    Observer: Kevin Williams
    Location: Browns Canyon NM--Ruby Mountain Campground area Chaffee
  111. Northern Rough-winged Swallow Stelgidopteryx serripennis
    # Count: 2
    Date:
    Observer: Kevin Williams
    Location: Browns Canyon NM--Ruby Mountain Campground area Chaffee
  112. Lark Sparrow Chondestes grammacus
    # Count: 1
    Date:
    Observer: Debara Johnson
    Location: Big Bluestem Trail, Widefield US-CO 38.74375, -104.69130 El Paso
  113. Black-headed Grosbeak Pheucticus melanocephalus
    # Count: 1
    Date:
    Observer: Kevin Williams
    Location: Browns Canyon NM--Ruby Mountain Campground area Chaffee
  114. Savannah Sparrow Passerculus sandwichensis
    # Count: 1
    Date:
    Observer: Don Marsh
    Location: Buckhorn Road Area Ouray Co Ouray
  115. American Three-toed Woodpecker Picoides dorsalis
    # Count: 1
    Date:
    Observer: Forrest Luke
    Location: Black Mountain Moffat
  116. Hairy Woodpecker Dryobates villosus
    # Count: 2
    Date:
    Observer: Forrest Luke
    Location: Black Mountain Moffat
  117. Canada Jay Perisoreus canadensis
    # Count: 4
    Date:
    Observer: Forrest Luke
    Location: Black Mountain Moffat
  118. Steller's Jay Cyanocitta stelleri
    # Count: 1
    Date:
    Observer: Forrest Luke
    Location: Black Mountain Moffat
  119. Golden-crowned Kinglet Regulus satrapa
    # Count: 1
    Date:
    Observer: Forrest Luke
    Location: Black Mountain Moffat
  120. Hermit Thrush Catharus guttatus
    # Count: 2
    Date:
    Observer: Forrest Luke
    Location: Black Mountain Moffat
  121. Lincoln's Sparrow Melospiza lincolnii
    # Count: 2
    Date:
    Observer: Forrest Luke
    Location: Black Mountain Moffat
  122. MacGillivray's Warbler Geothlypis tolmiei
    # Count: 2
    Date:
    Observer: Forrest Luke
    Location: Black Mountain Moffat
  123. Cooper's Hawk Accipiter cooperii
    # Count: 1
    Date:
    Observer: Ellen Heath
    Location: 2545 Spruce Creek Dr Larimer
  124. Vesper Sparrow Pooecetes gramineus
    # Count: 2
    Date:
    Observer: Anonymous eBirder
    Location: Dupont Open Space Douglas
  125. Dusky Grouse Dendragapus obscurus
    # Count: 1
    Date:
    Observer: Christian Nunes
    Location: Long Canyon Trail Boulder
  126. Brown Creeper Certhia americana
    # Count: 2
    Date:
    Observer: Christian Nunes
    Location: Long Canyon Trail Boulder
  127. Townsend's Solitaire Myadestes townsendi
    # Count: 1
    Date:
    Observer: Christian Nunes
    Location: Long Canyon Trail Boulder
  128. Red Crossbill Loxia curvirostra
    # Count: 2
    Date:
    Observer: Christian Nunes
    Location: Long Canyon Trail Boulder
  129. Virginia's Warbler Leiothlypis virginiae
    # Count: 1
    Date:
    Observer: Christian Nunes
    Location: Long Canyon Trail Boulder
  130. Cackling Goose Branta hutchinsii
    # Count: 1
    Date:
    Observer: Marvin Guiles
    Location: Ft. Collins City Park and Sheldon Lake Larimer
  131. Wood Duck Aix sponsa
    # Count: 5
    Date:
    Observer: Marvin Guiles
    Location: Ft. Collins City Park and Sheldon Lake Larimer
  132. Golden Eagle Aquila chrysaetos
    # Count: 2
    Date:
    Observer: Katie Weeks
    Location: Rocky outcrop CR 16 Routt
  133. Cliff Swallow Petrochelidon pyrrhonota
    # Count: 4
    Date:
    Observer: Edward Raynor
    Location: Dixon Reservoir Larimer
  134. Rock Wren Salpinctes obsoletus
    # Count: 1
    Date:
    Observer: Edward Raynor
    Location: Dixon Reservoir Larimer
  135. Dickcissel Spiza americana
    # Count: 1
    Date:
    Observer: Edward Raynor
    Location: Dixon Reservoir Larimer
  136. Clark's Nutcracker Nucifraga columbiana
    # Count: 2
    Date:
    Observer: Jeffrey Reichel
    Location: Lake Creek Trail 37.48444, -106.86258 Mineral
  137. Pine Grosbeak Pinicola enucleator
    # Count: 1
    Date:
    Observer: Jeffrey Reichel
    Location: Lake Creek Trail 37.48444, -106.86258 Mineral
  138. Lark Bunting Calamospiza melanocorys
    # Count: 2
    Date:
    Observer: woody wheeler
    Location: Pawnee NG Bird Tour--Stops 12-13 (CR-61) Weld
  139. Blue-gray Gnatcatcher Polioptila caerulea
    # Count: 1
    Date:
    Observer: Susan Ringoen
    Location: Hillcrest Golf Club, Durango US-CO 37.28504, -107.86357 La Plata
  140. American Dipper Cinclus mexicanus
    # Count: 1
    Date:
    Observer: Tyler Imfeld
    Location: Willow Grove Open Space Summit
  141. Brown Thrasher Toxostoma rufum
    # Count: 3
    Date:
    Observer: Joan Grant
    Location: Frenchman Creek SWA Phillips
  142. Belted Kingfisher Megaceryle alcyon
    # Count: 2
    Date:
    Observer: Piping Plover
    Location: Westerly Creek--MLK Jr Blvd to Sand Creek Denver
  143. American Wigeon Mareca americana
    # Count: 4
    Date:
    Observer: Deanna Einspahr
    Location: Steamboat Lake SP Routt
  144. Sandhill Crane Antigone canadensis
    # Count: 1
    Date:
    Observer: Deanna Einspahr
    Location: Steamboat Lake SP Routt
  145. Franklin's Gull Leucophaeus pipixcan
    # Count: 2
    Date:
    Observer: Deanna Einspahr
    Location: Steamboat Lake SP Routt
  146. Swainson's Thrush Catharus ustulatus
    # Count: 4
    Date:
    Observer: Eric Stary
    Location: Fish Creek Falls Routt
  147. Green-tailed Towhee Pipilo chlorurus
    # Count: 4
    Date:
    Observer: Eric Stary
    Location: Fish Creek Falls Routt
  148. Orange-crowned Warbler Leiothlypis celata
    # Count: 3
    Date:
    Observer: Eric Stary
    Location: Fish Creek Falls Routt
  149. Wilson's Snipe Gallinago delicata
    # Count: 1
    Date:
    Observer: Lauren Dooley
    Location: Tomahawk SWA Park
  150. Northern Harrier Circus hudsonius
    # Count: 1
    Date:
    Observer: Joey Angstman
    Location: South Republican SWA--Wagon Wheel Campground area Yuma
  151. Orchard Oriole Icterus spurius
    # Count: 2
    Date:
    Observer: Joey Angstman
    Location: South Republican SWA--Wagon Wheel Campground area Yuma
  152. Baltimore Oriole Icterus galbula
    # Count: 1
    Date:
    Observer: Joey Angstman
    Location: South Republican SWA--Wagon Wheel Campground area Yuma
  153. Ash-throated Flycatcher Myiarchus cinerascens
    # Count: 1
    Date:
    Observer: Don Marsh
    Location: Ridgway Visitors Center and Campground (Upper CG) Ouray
  154. Bewick's Wren Thryomanes bewickii
    # Count: 2
    Date:
    Observer: john higgins
    Location: Upper Liberty Cap TH Mesa
  155. Grasshopper Sparrow Ammodramus savannarum
    # Count: 4
    Date:
    Observer: angelique mori
    Location: Rocky Mountain Arsenal NWR-- East Auto Tour Adams
  156. Ring-necked Duck Aythya collaris
    # Count: 5
    Date:
    Observer: Zach Poland
    Location: Lions Ponds Trail, Fraser US-CO 39.94020, -105.80184 Grand
  157. Purple Martin Progne subis
    # Count: 1
    Date:
    Observer: Ryan Votta
    Location: Madden Peak Road, just beyond final cattle guard La Plata
  158. Cassin's Kingbird Tyrannus vociferans
    # Count: 1
    Date:
    Observer: Kelly Liddell
    Location: Ramah SWA El Paso
  159. Loggerhead Shrike Lanius ludovicianus
    # Count: 2
    Date:
    Observer: Kelly Liddell
    Location: Ramah SWA El Paso
  160. Bank Swallow Riparia riparia
    # Count: 4
    Date:
    Observer: Gwen Ridgeway
    Location: Barr Lake SP--boat ramp area Adams
  161. Great Horned Owl Bubo virginianus
    # Count: 1
    Date:
    Observer: Charlie Paterson
    Location: Garden of the Gods El Paso
  162. Gambel's Quail Callipepla gambelii
    # Count: 1
    Date:
    Observer: john higgins
    Location: Colorado NM--Fruita Canyon Mesa
  163. Prairie Falcon Falco mexicanus
    # Count: 1
    Date:
    Observer: Mary Anne Fluke
    Location: Garden of the Gods El Paso
  164. Gray Vireo Vireo vicinior
    # Count: 1
    Date:
    Observer: john higgins
    Location: Colorado NM--Fruita Canyon Mesa
  165. Hooded Merganser Lophodytes cucullatus
    # Count: 2
    Date:
    Observer: Teresa buowgirl
    Location: Lagerman Agricultural Preserve--Lagerman Reservoir Boulder
  166. Eared Grebe Podiceps nigricollis
    # Count: 1
    Date:
    Observer: Timo Mitzen
    Location: Stagecoach SP Routt
  167. Sora Porzana carolina
    # Count: 2
    Date:
    Observer: Timo Mitzen
    Location: Stagecoach SP Routt
  168. Wilson's Phalarope Phalaropus tricolor
    # Count: 4
    Date:
    Observer: Joan Grant
    Location: Playa on Phillips CR-29 at CR-8 Phillips
  169. White-rumped Sandpiper Calidris fuscicollis
    # Count: 2
    Date:
    Observer: Joan Grant
    Location: Playa on Phillips CR-29 at CR-8 Phillips
  170. Juniper Titmouse Baeolophus ridgwayi
    # Count: 1
    Date:
    Observer: Deb Crippen
    Location: County Road 103, Wetmore, Colorado, US (38.257, -105.138) Custer
  171. Virginia Rail Rallus limicola
    # Count: 1
    Date:
    Observer: Bill Harris
    Location: Marine Road Park Montrose
  172. Black-crowned Night Heron Nycticorax nycticorax
    # Count: 1
    Date:
    Observer: Jane Lee
    Location: Belmar Park Jefferson
  173. Bobolink Dolichonyx oryzivorus
    # Count: 4
    Date:
    Observer: Duwayne Worthington
    Location: City of Boulder OSMP--Cherryvale Office area Boulder
  174. Ferruginous Hawk Buteo regalis
    # Count: 1
    Date:
    Observer: woody wheeler
    Location: Pawnee NG Bird Tour--Stops 1-4 and Murphy's Pasture Weld
  175. Yellow-billed Cuckoo Coccyzus americanus
    # Count: 1
    Date:
    Observer: Adrian Lakin
    Location: Tamarack Ranch SWA--385 Rd Logan
  176. American Goshawk Accipiter atricapillus
    # Count: 1
    Date:
    Observer: Carly Crow
    Location: 82C, Buena Vista, Colorado, US (39.063, -106.505) Lake
  177. Red-bellied Woodpecker Melanerpes carolinus
    # Count: 1
    Date:
    Observer: Adrian Lakin
    Location: Tamarack Ranch SWA--385 Rd Logan
  178. Northern Cardinal Cardinalis cardinalis
    # Count: 1
    Date:
    Observer: Adrian Lakin
    Location: Tamarack Ranch SWA--385 Rd Logan
  179. Williamson's Sapsucker Sphyrapicus thyroideus
    # Count: 1
    Date:
    Observer: Coen Dexter
    Location: FS Road 526, Carolyn's McPhee Park, Colorado, US (37.607, -108.416) Montezuma
  180. Ladder-backed Woodpecker Dryobates scalaris
    # Count: 2
    Date:
    Observer: Rick Luehrs
    Location: Kane Ranch Open Space El Paso
  181. Cassin's Finch Haemorhous cassinii
    # Count: 1
    Date:
    Observer: Coen Dexter
    Location: FS Road 526, Carolyn's McPhee Park, Colorado, US (37.607, -108.416) Montezuma
  182. Grace's Warbler Setophaga graciae
    # Count: 2
    Date:
    Observer: Coen Dexter
    Location: FS Road 526, Carolyn's McPhee Park, Colorado, US (37.607, -108.416) Montezuma
  183. Black Phoebe Sayornis nigricans
    # Count: 1
    Date:
    Observer: Kristi Streiffert 🪶
    Location: Three Springs--riparian & residential La Plata
  184. Evening Grosbeak Coccothraustes vespertinus
    # Count: 2
    Date:
    Observer: Cooper Rondinelli
    Location: Portland Trail Ouray
  185. American Bittern Botaurus lentiginosus
    # Count: 1
    Date:
    Observer: Joo Tan
    Location: Boulder Valley Ranch Boulder
  186. Ovenbird Seiurus aurocapilla
    # Count: 1
    Date:
    Observer: Michael Morton
    Location: Gregory Canyon Boulder
  187. Indigo Bunting Passerina cyanea
    # Count: 1
    Date:
    Observer: Jim Ward
    Location: Heil Valley Ranch Boulder
  188. White-tailed Ptarmigan Lagopus leucura
    # Count: 2
    Date:
    Observer: Kadynn Hatfield
    Location: Rocky Mountain NP--Medicine Bow Curve Larimer
  189. American Pipit Anthus rubescens
    # Count: 7
    Date:
    Observer: Kadynn Hatfield
    Location: Rocky Mountain NP--Medicine Bow Curve Larimer
  190. Northern Bobwhite Colinus virginianus
    # Count: 3
    Date:
    Observer: Adrian Lakin
    Location: Tamarack Ranch SWA Logan
  191. Bell's Vireo Vireo bellii
    # Count: 3
    Date:
    Observer: Adrian Lakin
    Location: Tamarack Ranch SWA Logan
  192. Great Egret Ardea alba
    # Count: 2
    Date:
    Observer: Ellen Heath
    Location: Westchase Natural Area Larimer
  193. Upland Sandpiper Bartramia longicauda
    # Count: 3
    Date:
    Observer: Adrian Lakin
    Location: 38571 County Road 58, Crook, Colorado, US (40.85, -102.835) Logan
  194. Curve-billed Thrasher Toxostoma curvirostre
    # Count: 1
    Date:
    Observer: Tanja Britton
    Location: Kane Ranch Open Space El Paso
  195. Cassin's Sparrow Peucaea cassinii
    # Count: 26
    Date:
    Observer: Tanja Britton
    Location: Kane Ranch Open Space El Paso
  196. Common Poorwill Phalaenoptilus nuttallii
    # Count: 3
    Date:
    Observer: Ryan Claar
    Location: Pinon Mesa Mesa
  197. Northern Pygmy-Owl Glaucidium gnoma
    # Count: 1
    Date:
    Observer: Jan Swaney
    Location: Swaney yard Larimer
  198. Brewer's Sparrow Spizella breweri
    # Count: 3
    Date:
    Observer: My-Lan Le
    Location: Wolford Mountain Reservoir Grand
  199. Sage Thrasher Oreoscoptes montanus
    # Count: 1
    Date:
    Observer: My-Lan Le
    Location: Wolford Mountain Reservoir Grand
  200. Gray Flycatcher Empidonax wrightii
    # Count: 1
    Date:
    Observer: Lily Kenyon
    Location: Mesa Verde Lodge Montezuma
  201. Eastern Screech-Owl Megascops asio
    # Count: 1
    Date:
    Observer: V Hamilton
    Location: Long Lake Regional Park Jefferson
  202. Black-throated Sparrow Amphispiza bilineata
    # Count: 1
    Date:
    Observer: Mica Low
    Location: Mesa Verde NP--Spruce Tree House Montezuma
  203. White-winged Dove Zenaida asiatica
    # Count: 1
    Date:
    Observer: Vinod Babu
    Location: Murphy's Resort, Estes Park, Colorado, US (40.38, -105.495) Larimer
  204. Canyon Towhee Melozone fusca
    # Count: 2
    Date:
    Observer: Joy Lake
    Location: Lake Home El Paso
  205. Least Flycatcher Empidonax minimus
    # Count: 1
    Date:
    Observer: Hannah Criswell
    Location: Chatfield SP (Jefferson Co) Jefferson
  206. Northern Parula Setophaga americana
    # Count: 1
    Date:
    Observer: Alex Cruz Jr 🦤
    Location: Old Saint Vrain Rd Boulder
  207. Black Swift Cypseloides niger
    # Count: 1
    Date:
    Observer: Nolan A. Walker
    Location: Box Canyon Falls Park Ouray
  208. Canyon Wren Catherpes mexicanus
    # Count: 1
    Date:
    Observer: James Kachline
    Location: Red Rocks Park--Trading Post Jefferson
  209. Mountain Plover Anarhynchus montanus
    # Count: 1
    Date:
    Observer: Angelo DelloMargio
    Location: Briggsdale (town) Weld
  210. Black-necked Stilt Himantopus mexicanus
    # Count: 4
    Date:
    Observer: Glenn Walbek
    Location: Lake Henry Crowley
  211. Thick-billed Longspur Rhynchophanes mccownii
    # Count: 3
    Date:
    Observer: Josh Bruening
    Location: 80818, Genoa US-CO (39.3744,-103.5226)-no public access Lincoln
  212. Western Cattle Egret Bubulcus ibis
    # Count: 3
    Date:
    Observer: Betty Glass
    Location: Lake Arbor Jefferson
  213. Canvasback Aythya valisineria
    # Count: 10
    Date:
    Observer: David Schulte
    Location: Walden Reservoir--SE side Jackson
  214. Willet Tringa semipalmata
    # Count: 1
    Date:
    Observer: David Schulte
    Location: Walden Reservoir--SE side Jackson
  215. Forster's Tern Sterna forsteri
    # Count: 2
    Date:
    Observer: David Schulte
    Location: Walden Reservoir--SE side Jackson
  216. Chestnut-collared Longspur Calcarius ornatus
    # Count: 8
    Date:
    Observer: Mike Serruto
    Location: Pawnee NG--Weld CR 45 from CR 114 to 122 Weld
  217. Red-eyed Vireo Vireo olivaceus
    # Count: 1
    Date:
    Observer: Nereus Rankin
    Location: Watson Lake Larimer
  218. Peregrine Falcon Falco peregrinus
    # Count: 1
    Date:
    Observer: Ron Lambeth
    Location: Baxter Pass Rd, CR201 Upper Evacuation Creek Garfield
  219. Flammulated Owl Psiloscops flammeolus
    # Count: 1
    Date:
    Observer: Mike Thompson
    Location: Auto selected 37.44732, -108.12985 Montezuma
  220. Pinyon Jay Gymnorhinus cyanocephalus
    # Count: 2
    Date:
    Observer: Jan Allen
    Location: Orient Land Trust--Valley View Hot Springs (reservations required) Saguache
  221. Greater Sage-Grouse Centrocercus urophasianus
    # Count: 4
    Date:
    Observer: Andrew Donnelly
    Location: Harpers Corner Rd, Maybell US-CO 40.36876, -108.99678 Moffat
  222. Sharp-shinned Hawk Accipiter striatus
    # Count: 1
    Date:
    Observer: Mike Clark
    Location: Standley Lake and Park Jefferson
  223. American Redstart Setophaga ruticilla
    # Count: 1
    Date:
    Observer: Jim Nachel
    Location: Dixon Reservoir Larimer
  224. Eastern Bluebird Sialia sialis
    # Count: 2
    Date:
    Observer: Karen Coupland
    Location: Lichen Loop Trail Boulder
  225. Eastern Phoebe Sayornis phoebe
    # Count: 1
    Date:
    Observer: David Suddjian
    Location: Pryor (Santa Clara Creek) Huerfano
  226. Black-and-white Warbler Mniotilta varia
    # Count: 1
    Date:
    Observer: John Rutenbeck
    Location: Crane Hollow Road and ponds Boulder
  227. Band-tailed Pigeon Patagioenas fasciata
    # Count: 15
    Date:
    Observer: Patti Shwartz
    Location: Ute Pass Rd--lower (Summit Co) Summit
  228. Chihuahuan Raven Corvus cryptoleucus
    # Count: 2
    Date:
    Observer: Ryan Hillsley
    Location: Holy Cross Abbey Fremont
  229. Brown-capped Rosy-Finch Leucosticte australis
    # Count: 3
    Date:
    Observer: Kieran Schnitzspahn
    Location: Rocky Mountain NP--Trail Ridge Rd--Lava Cliffs Larimer
  230. Northern Saw-whet Owl Aegolius acadicus
    # Count: 1
    Date:
    Observer: John Hurd
    Location: 579–603 Forest Service Road 101, Antonito US-CO 37.08588, -106.24447 Conejos
  231. Veery Catharus fuscescens
    # Count: 1
    Date:
    Observer: Carol Bell
    Location: Reservoir SMR Grand
  232. Northern Pintail Anas acuta
    # Count: 8
    Date:
    Observer: Kaleb Crane
    Location: Neenoshe Reservoir--SE corner (often disjunct) Kiowa
  233. Long-billed Curlew Numenius americanus
    # Count: 2
    Date:
    Observer: Kaleb Crane
    Location: Neenoshe Reservoir--SE corner (often disjunct) Kiowa
  234. Scaled Quail Callipepla squamata
    # Count: 1
    Date:
    Observer: Patricia Stuckey
    Location: Cattail Crossing Pueblo
  235. Chukar Alectoris chukar
    # Count: 7
    Date:
    Observer: Keith Giezentanner
    Location: 81630, De Beque US-CO 39.38336, -108.98801 Garfield
  236. Great Crested Flycatcher Myiarchus crinitus
    # Count: 1
    Date:
    Observer: Eric Dinkel
    Location: Tamarack Ranch SWA Logan
  237. Field Sparrow Spizella pusilla
    # Count: 2
    Date:
    Observer: Eric Dinkel
    Location: Tamarack Ranch SWA Logan
  238. White-faced Ibis Plegadis chihi
    # Count: 1
    Date:
    Observer: Chris Petrizzo
    Location: Boulder & Left Hand Ditch--Lookout Rd to Hway 52 Boulder
  239. Green Heron Butorides virescens
    # Count: 1
    Date:
    Observer: mark yaeger
    Location: Pueblo City Park Pueblo
  240. Bufflehead Bucephala albeola
    # Count: 1
    Date:
    Observer: Jennie Duberstein
    Location: Lagerman Agricultural Preserve--Lagerman Reservoir Boulder
  241. Rose-breasted Grosbeak Pheucticus ludovicianus
    # Count: 1
    Date:
    Observer: David Orth-Moore
    Location: BV Home - Elephant Rock Lane neighborhood Chaffee
  242. Bonaparte's Gull Chroicocephalus philadelphia
    # Count: 1
    Date:
    Observer: Coen Dexter
    Location: McPhee Reservoir--West End Montezuma
  243. Barn Owl Tyto alba
    # Count: 1
    Date:
    Observer: Dave Shugert
    Location: High line canal north of County line Arapahoe
  244. Sagebrush Sparrow Artemisiospiza nevadensis
    # Count: 2
    Date:
    Observer: Bill Harris
    Location: Dave Wood Rd. Montrose
  245. Barrow's Goldeneye Bucephala islandica
    # Count: 11
    Date:
    Observer: David Wade
    Location: Hohnholz Lakes SWA & Campground Larimer
  246. Scott's Oriole Icterus parisorum
    # Count: 1
    Date:
    Observer: Daniel Maynard
    Location: Baxter Pass BBS 8 Garfield
  247. Caspian Tern Hydroprogne caspia
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Kechter Pit wetland Larimer
  248. Red-necked Phalarope Phalaropus lobatus
    # Count: 2
    Date:
    Observer: Brad Biggerstaff
    Location: Duck Lake (Larimer Co.) Larimer
  249. Snowy Plover Anarhynchus nivosus
    # Count: 5
    Date:
    Observer: Joey Kellner
    Location: Cheraw Causeway Otero
  250. Common Loon Gavia immer
    # Count: 1
    Date:
    Observer: Noah Brinkman
    Location: Stagecoach SP Routt
  251. Nashville Warbler Leiothlypis ruficapilla
    # Count: 1
    Date:
    Observer: Prineet Anand
    Location: Rocky Mountain NP--Alluvial Fan/Fan Lake area Larimer
  252. Long-billed Dowitcher Limnodromus scolopaceus
    # Count: 2
    Date:
    Observer: Cole Wild
    Location: Pond on Timberline and CR-30 (private, view from road) Larimer
  253. Baird's Sandpiper Calidris bairdii
    # Count: 1
    Date:
    Observer: Scott Shaum
    Location: Antero Reservoir--southeast island Park
  254. Lucy's Warbler Leiothlypis luciae
    # Count: 5
    Date:
    Observer: Mike Thompson
    Location: Lower Yellowjacket Montezuma
  255. Summer Tanager Piranga rubra
    # Count: 1
    Date:
    Observer: Mike Thompson
    Location: Lower Yellowjacket Montezuma
  256. Common Goldeneye Bucephala clangula
    # Count: 2
    Date:
    Observer: Brad Bergstrom
    Location: Sands Lake SWA Chaffee
  257. Black Tern Chlidonias niger
    # Count: 1
    Date:
    Observer: Mark McLaughlin
    Location: Rocky Mountain Arsenal NWR Adams
  258. Semipalmated Sandpiper Calidris pusilla
    # Count: 1
    Date:
    Observer: Valentina Roumi
    Location: Lagerman Agricultural Preserve--Lagerman Reservoir Boulder
  259. Stilt Sandpiper Calidris himantopus
    # Count: 1
    Date:
    Observer: Joey Kellner
    Location: Playa on Phillips CR-29 at CR-8 Phillips
  260. Northern Waterthrush Parkesia noveboracensis
    # Count: 1
    Date:
    Observer: Grant Medlin
    Location: Hohnholz Lakes SWA & Campground Larimer
  261. Least Sandpiper Calidris minutilla
    # Count: 1
    Date:
    Observer: Ethan Cleveland
    Location: Cherry Creek SP Arapahoe
  262. Whimbrel Numenius phaeopus
    # Count: 1
    Date:
    Observer: Jim Nachel
    Location: Duck Lake (Larimer Co.) Larimer
  263. Greater Roadrunner Geococcyx californianus
    # Count: 1
    Date:
    Observer: Aaron Dubas
    Location: Adobe Creek Reservoir (Blue Lake)--Bent Co Bent
  264. Piping Plover Charadrius melodus
    # Count: 3
    Date:
    Observer: Aaron Dubas
    Location: Adobe Creek Reservoir (Blue Lake)--Bent Co Bent
  265. Least Tern Sternula antillarum
    # Count: 4
    Date:
    Observer: Aaron Dubas
    Location: Adobe Creek Reservoir (Blue Lake)--Bent Co Bent
  266. Carolina Wren Thryothorus ludovicianus
    # Count: 1
    Date:
    Observer: Aaron Dubas
    Location: Adobe Creek Reservoir (Blue Lake)--Bent Co Bent
  267. Lesser Yellowlegs Tringa flavipes
    # Count: 1
    Date:
    Observer: Paul Gordy
    Location: Duck Lake (Larimer Co.) Larimer
  268. Snow Goose Anser caerulescens
    # Count: 1
    Date:
    Observer: Lindsey Wohlman
    Location: Lagerman Agricultural Preserve--Lagerman Reservoir Boulder
  269. Pectoral Sandpiper Calidris melanotos
    # Count: 6
    Date:
    Observer: Jeremy Alcorn
    Location: Lagerman Agricultural Preserve--Lagerman Reservoir Boulder
  270. Magnolia Warbler Setophaga magnolia
    # Count: 1
    Date:
    Observer: Jane Stulp
    Location: Farm Yard Prowers
  271. White-throated Sparrow Zonotrichia albicollis
    # Count: 1
    Date:
    Observer: Mary Petrie
    Location: Rocky Mountain NP--Moraine Park Visitor Center Larimer
  272. Least Bittern Ixobrychus exilis
    # Count: 1
    Date:
    Observer: Owen Robertson
    Location: Centennial Park (Arapahoe Co) Arapahoe
  273. Sanderling Calidris alba
    # Count: 1
    Date:
    Observer: Janeal W. Thompson
    Location: North Gateway Park (limited access during waterfowl season) Prowers
  274. Chestnut-sided Warbler Setophaga pensylvanica
    # Count: 1
    Date:
    Observer: Kelly Ormesher
    Location: Pawnee NG--Crow Valley CG Weld
  275. Clay-colored Sparrow Spizella pallida
    # Count: 1
    Date:
    Observer: Kelly Ormesher
    Location: County Road 71, Briggsdale US-CO 40.54567, -104.39386 Weld
  276. Red-breasted Merganser Mergus serrator
    # Count: 1
    Date:
    Observer: john higgins
    Location: Redlands Parkway Ponds Mesa
  277. Boreal Owl Aegolius funereus
    # Count: 1
    Date:
    Observer: Neil Brown
    Location: Muddy Pass Lake Jackson
  278. Lesser Nighthawk Chordeiles acutipennis
    # Count: 1
    Date:
    Observer: Kathy Mihm Dunning
    Location: Frantz Lake SWA Chaffee
  279. Greater Yellowlegs Tringa melanoleuca
    # Count: 1
    Date:
    Observer: Coen Kliewer
    Location: Big Johnson Reservoir & Bluestem Prairie Open Space El Paso
  280. Black-chinned Sparrow Spizella atrogularis
    # Count: 1
    Date:
    Observer: Jason St. Pierre
    Location: Summit Point area San Miguel
  281. Sharp-tailed Grouse Tympanuchus phasianellus
    # Count: X
    Date:
    Observer: Forrest Luke
    Location: Trapper Mine (restricted access) Moffat
  282. Scissor-tailed Flycatcher Tyrannus forficatus
    # Count: 1
    Date:
    Observer: Hunter Johnson
    Location: STFL LIN, HWY 71 Lincoln
  283. Western Screech-Owl Megascops kennicottii
    # Count: 3
    Date:
    Observer: Mike Henwood
    Location: 357 Martello Dr, Grand Junction US-CO 39.05700, -108.58711 Mesa
  284. Broad-winged Hawk Buteo platypterus
    # Count: 1
    Date:
    Observer: Kristin Tallis
    Location: Crystal Lakes Larimer
  285. Scarlet Tanager Piranga olivacea
    # Count: 1
    Date:
    Observer: Greg Vassilopoulos
    Location: 4510 SW 14th St, Loveland US-CO (40.3775,-105.1414) Larimer
  286. Lesser Black-backed Gull Larus fuscus
    # Count: 1
    Date:
    Observer: Brandon K. Percival
    Location: Lake Pueblo SP--South Marina area Pueblo
  287. Cassin's Vireo Vireo cassinii
    # Count: 1
    Date:
    Observer: Jim Nachel
    Location: Well Gulch Nature Trail Larimer
  288. Hooded Warbler Setophaga citrina
    # Count: 1
    Date:
    Observer: Timo Mitzen
    Location: Tucker Gulch Jefferson
  289. Tennessee Warbler Leiothlypis peregrina
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394 Weld
  290. Townsend's Warbler Setophaga townsendi
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394 Weld
  291. Blue-winged Warbler Vermivora cyanoptera
    # Count: 1
    Date:
    Observer: Glenn Walbek
    Location: Thompson Ranch (Lincoln Co; private) Lincoln
  292. Common Black Hawk Buteogallus anthracinus
    # Count: 1
    Date:
    Observer: carey bare
    Location: Arkansas River Headwaters RA Chaffee
  293. Greater White-fronted Goose Anser albifrons
    # Count: 2
    Date:
    Observer: David Muth
    Location: Barr Lake SP--Neidrach Nature Trail & Visitor Center area Adams
  294. Mourning Warbler Geothlypis philadelphia
    # Count: 1
    Date:
    Observer: Jane Stulp
    Location: Farm Yard Prowers
  295. Mexican Duck Anas diazi
    # Count: 1
    Date:
    Observer: Mike Thompson
    Location: Dolores Ponds (wastewater plant area) Montezuma
  296. Blackburnian Warbler Setophaga fusca
    # Count: 1
    Date:
    Observer: Robb Hinds
    Location: Chico Basin Ranch (Pueblo Co) (mandatory registration required at www.aikenaudubon.com) Pueblo
  297. Solitary Sandpiper Tringa solitaria
    # Count: 1
    Date:
    Observer: Brandon K. Percival
    Location: Chico Basin Ranch (Pueblo Co) (mandatory registration required at www.aikenaudubon.com) Pueblo
  298. Worm-eating Warbler Helmitheros vermivorum
    # Count: 1
    Date:
    Observer: Greg Vassilopoulos
    Location: Yard Birds, Loveland US-CO (40.3965,-105.1534) Larimer
  299. White-eyed Vireo Vireo griseus
    # Count: 1
    Date:
    Observer: Thomas Sather
    Location: 1949 Mount Zion Dr, Golden US-CO 39.74464, -105.23175 Jefferson
  300. Semipalmated Plover Charadrius semipalmatus
    # Count: 3
    Date:
    Observer: Gabriel Russell
    Location: Lagerman Agricultural Preserve--Lagerman Reservoir Boulder
  301. Rufous-crowned Sparrow Aimophila ruficeps
    # Count: 2
    Date:
    Observer: matt newport
    Location: Homestead Trail, Campo US-CO 37.00079, -102.77312 Baca
  302. Blackpoll Warbler Setophaga striata
    # Count: 1
    Date:
    Observer: Oliver Smith
    Location: City Center Park Arapahoe
  303. Chihuahuan Meadowlark Sturnella lilianae
    # Count: 1
    Date:
    Observer: M Gaylord
    Location: County Road JJ, Pritchett, Colorado, US (37.455, -102.968)cass Baca
  304. Merlin Falco columbarius
    # Count: 1
    Date:
    Observer: Bryan Tarbox
    Location: Hewlett Gulch Larimer
  305. Black Rosy-Finch Leucosticte atrata
    # Count: 1
    Date:
    Observer: Patti Shwartz
    Location: Ute Pass Rd--lower (Summit Co) Summit
  306. Calliope Hummingbird Selasphorus calliope
    # Count: 1
    Date:
    Observer: Arvind Panjabi
    Location: 5501 Continental Dr, Fort Collins US-CO Larimer
  307. Pine Warbler Setophaga pinus
    # Count: 1
    Date:
    Observer: Mark Peterson
    Location: Mullen HS Denver
  308. Trumpeter Swan Cygnus buccinator
    # Count: 3
    Date:
    Observer: Catherine Hagen
    Location: Ranch at Roaring Fork (Private), Carbondale, Colorado, US (39.407, -107.163) Garfield
  309. Black-throated Green Warbler Setophaga virens
    # Count: 1
    Date:
    Observer: V Hamilton
    Location: Long Lake Regional Park Jefferson
  310. Wood Thrush Hylocichla mustelina
    # Count: 1
    Date:
    Observer: David Fraide
    Location: Loveland Recycle Center Pond Larimer
  311. Western Sandpiper Calidris mauri
    # Count: 1
    Date:
    Observer: Linda Chittum
    Location: Highline Lake SP Mesa
  312. Black-bellied Plover Pluvialis squatarola
    # Count: 2
    Date:
    Observer: Laura Stump
    Location: Neegronda Reservoir Kiowa
  313. Red-throated Loon Gavia stellata
    # Count: 2
    Date:
    Observer: Emil Yappert
    Location: Douglas Reservoir Larimer
  314. Palm Warbler Setophaga palmarum
    # Count: 1
    Date:
    Observer: Greg Osland
    Location: Overland Park Larimer
  315. Prairie Warbler Setophaga discolor
    # Count: 1
    Date:
    Observer: Glenn Walbek
    Location: Kinney Lake SWA Lincoln
  316. Ruby-throated Hummingbird Archilochus colubris
    # Count: 1
    Date:
    Observer: Jane Stulp
    Location: Farm Yard Prowers
  317. Black-throated Blue Warbler Setophaga caerulescens
    # Count: 1
    Date:
    Observer: Jeremy Alcorn
    Location: Old Saint Vrain Rd Boulder
  318. Neotropic Cormorant Nannopterum brasilianum
    # Count: 1
    Date:
    Observer: Susan Allerton
    Location: Totten Reservoir Montezuma
  319. Short-eared Owl Asio flammeus
    # Count: 1
    Date:
    Observer: Carly Crow
    Location: 44963-44093 County Road 155, Sterling, Colorado, US (40.645, -103.6) Weld
  320. Long-tailed Duck Clangula hyemalis
    # Count: 1
    Date:
    Observer: Katherine Holland
    Location: Platte Canyon Reservoir Douglas
  321. Golden-winged Warbler Vermivora chrysoptera
    # Count: 1
    Date:
    Observer: Jane Stulp
    Location: Farm Yard Prowers
  322. Gray-crowned Rosy-Finch Leucosticte tephrocotis
    # Count: 2
    Date:
    Observer: Jude Stradtner
    Location: Dooley Creek Farm (PRIVATE PROPERTY, NO PUBLIC ACCESS) Pitkin
  323. Gray-cheeked Thrush Catharus minimus
    # Count: 1
    Date:
    Observer: Mia H
    Location: Private property Boulder
  324. Acorn Woodpecker Melanerpes formicivorus
    # Count: 2
    Date:
    Observer: David Suddjian
    Location: Meadow Road, Rafter J subdivision La Plata
  325. Alder Flycatcher Empidonax alnorum
    # Count: 1
    Date:
    Observer: David de Rivera Tønnessen
    Location: Chico Basin Ranch--wooded areas (El Paso Co) (mandatory registration required at www.aikenaudubon.com) El Paso
  326. Ruddy Turnstone Arenaria interpres
    # Count: 1
    Date:
    Observer: Cole Sage
    Location: Loloff Reservoir Weld
  327. Marbled Godwit Limosa fedoa
    # Count: 1
    Date:
    Observer: Cole Sage
    Location: Playa at Morgan CRs JJ & 31 Morgan
  328. Yellow-throated Vireo Vireo flavifrons
    # Count: 1
    Date:
    Observer: Allison Godek
    Location: Horsetooth Mountain Open Space Larimer
  329. Short-billed Dowitcher Limnodromus griseus
    # Count: 2
    Date:
    Observer: Jeremy Alcorn
    Location: Stewart's Pond Weld
  330. Painted Bunting Passerina ciris
    # Count: 1
    Date:
    Observer: Julia Snieder
    Location: Picture Canyon Baca
  331. Laughing Gull Leucophaeus atricilla
    # Count: 1
    Date:
    Observer: Geree Rea
    Location: 81036, Eads US-CO 38.29544, -102.74156 Kiowa
  332. Glossy Ibis Plegadis falcinellus
    # Count: 1
    Date:
    Observer: Dan Zmolek
    Location: Lagerman Agricultural Preserve--Lagerman Reservoir Boulder
  333. Horned Grebe Podiceps auritus
    # Count: 1
    Date:
    Observer: Daniel Maynard
    Location: Smith Reservoir SWA Costilla
  334. White-winged Crossbill Loxia leucoptera
    # Count: 1
    Date:
    Observer: Denise Van Peursem
    Location: 7113 Pinewood Drive, Evergreen, Colorado, US (39.59, -105.346) Home Jefferson
  335. Greater Scaup Aythya marila
    # Count: 1
    Date:
    Observer: Ryan Votta
    Location: Dolores Ponds (wastewater plant area) Montezuma
  336. Black Scoter Melanitta americana
    # Count: 1
    Date:
    Observer: Ryan Votta
    Location: Dolores Ponds (wastewater plant area) Montezuma
  337. Prothonotary Warbler Protonotaria citrea
    # Count: 1
    Date:
    Observer: Luke Pheneger
    Location: Chalk Cliffs Rearing Unit Chaffee
  338. Tricolored Heron Egretta tricolor
    # Count: 1
    Date:
    Observer: Kurt Hillman
    Location: Pastorius Reservoir La Plata
  339. Bay-breasted Warbler Setophaga castanea
    # Count: 1
    Date:
    Observer: Lindsey Wohlman
    Location: Elks Park Boulder
  340. Anna's Hummingbird Calypte anna
    # Count: 1
    Date:
    Observer: Meredith Swett Walker
    Location: 452 Tara Dr, Fruita US-CO 39.16480, -108.74712 Mesa
  341. Greater Prairie-Chicken Tympanuchus cupido
    # Count: X
    Date:
    Observer: Cole Sage
    Location: South Republican SWA--Hale Ponds Yuma
  342. Eastern Wood-Pewee Contopus virens
    # Count: 1
    Date:
    Observer: Luke Pheneger
    Location: Ft Lyon Wildlife Easement Bent
  343. Cape May Warbler Setophaga tigrina
    # Count: 1
    Date:
    Observer: Earl Beasley
    Location: Clear Spring Ranch El Paso
  344. Vermilion Flycatcher Pyrocephalus rubinus
    # Count: 1
    Date:
    Observer: Tyler Stuart
    Location: Higbee Valley Road (Otero CR 804) Otero
  345. Philadelphia Vireo Vireo philadelphicus
    # Count: 1
    Date:
    Observer: Jane Stulp
    Location: Farm Yard Prowers
  346. Harris's Sparrow Zonotrichia querula
    # Count: 1
    Date:
    Observer: Katy Shirley
    Location: Pastorius Reservoir La Plata
  347. Varied Thrush Ixoreus naevius
    # Count: 1
    Date:
    Observer: peggy badgett
    Location: BVHS Nature Area Trail & Marquard Nature Area Chaffee
  348. Swamp Sparrow Melospiza georgiana
    # Count: 1
    Date:
    Observer: Charlie Chase
    Location: Barr Lake SP--Bird Conservancy of the Rockies office area & below dam Adams
  349. Golden-crowned Sparrow Zonotrichia atricapilla
    # Count: 1
    Date:
    Observer: Mike Henwood
    Location: Gormley Yard--2565 I 1/2 Road Mesa
  350. Eastern Towhee Pipilo erythrophthalmus
    # Count: 1
    Date:
    Observer: Linda Lee
    Location: Lamar Community College Prowers
  351. Common Tern Sterna hirundo
    # Count: 12
    Date:
    Observer: Linda Chittum
    Location: Highline Lake State Park—Nature Study Area Mesa
  352. Yellow Grosbeak Pheucticus chrysopeplus
    # Count: 1
    Date:
    Observer: Bob Panariso
    Location: Saint Charles Mesa area, 30th Ln Pueblo
  353. Dunlin Calidris alpina
    # Count: 1
    Date:
    Observer: Sally Waterhouse
    Location: CR-166, Salida US-CO 38.56327, -106.04141 Chaffee
  354. Hudsonian Godwit Limosa haemastica
    # Count: 1
    Date:
    Observer: Ryan Votta
    Location: Pastorius Reservoir La Plata
  355. Herring Gull Larus argentatus
    # Count: 1
    Date:
    Observer: Ronda Woodward
    Location: Highline State Park Mesa
  356. Sabine's Gull Xema sabini
    # Count: 1
    Date:
    Observer: Chris Goulart
    Location: Ireland Reservoir No. 5 Weld
  357. Hepatic Tanager Piranga flava
    # Count: 1
    Date:
    Observer: Alan Versaw
    Location: Kane Ranch Open Space El Paso
  358. Rough-legged Hawk Buteo lagopus
    # Count: 1
    Date:
    Observer: Tami St. Germain
    Location: Gurley Drive San Miguel
  359. Rufous Hummingbird Selasphorus rufus
    # Count: 1
    Date:
    Observer: Mike Thompson
    Location: Private Montezuma
  360. Yellow-throated Warbler Setophaga dominica
    # Count: 1
    Date:
    Observer: Geree Rea
    Location: Jane’s (private property) Prowers
  361. Baird's Sparrow Centronyx bairdii
    # Count: 10
    Date:
    Observer: Steven Mlodinow
    Location: KCR 57 Kiowa
  362. Surf Scoter Melanitta perspicillata
    # Count: 1
    Date:
    Observer: Duwayne Worthington
    Location: Lake Pueblo SP--Valco Ponds Pueblo
  363. Bohemian Waxwing Bombycilla garrulus
    # Count: 15
    Date:
    Observer: 🦢 Trinity 🦢 Swan 🦢
    Location: 19982 Church Park Road, Fraser, Colorado, US (39.939, -105.885) Grand
  364. American Golden-Plover Pluvialis dominica
    # Count: 1
    Date:
    Observer: Coen Dexter
    Location: McPhee Reservoir--West End Montezuma
  365. Vaux's Swift Chaetura vauxi
    # Count: 1
    Date:
    Observer: Matt Clark
    Location: Lake Pueblo SP--Valco Ponds Pueblo
  366. Brambling Fringilla montifringilla
    # Count: 1
    Date:
    Observer: Donna Stumpp
    Location: 5543 Bitterbush Way, Loveland US-CO (40.3912,-105.1589) Larimer
  367. Eurasian Wigeon Mareca penelope
    # Count: 1
    Date:
    Observer: Glenn Walbek
    Location: Neegronda Reservoir Kiowa
  368. Yellow-bellied Sapsucker Sphyrapicus varius
    # Count: 1
    Date:
    Observer: Eric Walters
    Location: Rocky Mountain NP--Fern Lake Trail Larimer
  369. Lapland Longspur Calcarius lapponicus
    # Count: 1
    Date:
    Observer: Amanda Gorely
    Location: Pawnee NG Bird Tour—Stops 5-8 Weld
  370. American Tree Sparrow Spizelloides arborea
    # Count: 1
    Date:
    Observer: Brian Genge
    Location: Cottonwood Canyon (southern loop) Baca
  371. Winter Wren Troglodytes hiemalis
    # Count: 1
    Date:
    Observer: Cole Sage
    Location: Cottonwood Canyon (Las Animas Co.; campground and upstream to W; ~0.52 mi. on road in county) Las Animas
  372. Iceland Gull Larus glaucoides
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Windsor Reservoir Weld
  373. Ross's Goose Anser rossii
    # Count: 2
    Date:
    Observer: Steven Mlodinow
    Location: Neenoshe Reservoir Kiowa
  374. Blue-headed Vireo Vireo solitarius
    # Count: 1
    Date:
    Observer: Joel Ludlam
    Location: Fountain Creek Regional Park--Nature Center/Cattail Marsh area El Paso
  375. Pacific Wren Troglodytes pacificus
    # Count: 1
    Date:
    Observer: Steve Stachowiak
    Location: Roxborough SP Douglas
  376. Pacific Loon Gavia pacifica
    # Count: 1
    Date:
    Observer: Skye Haas
    Location: Pueblo Reservoir Pueblo
  377. Red-necked Grebe Podiceps grisegena
    # Count: 1
    Date:
    Observer: Sandy Beranich
    Location: Ridgway SP--Bay View Day Use Area Ouray
  378. Northern Shrike Lanius borealis
    # Count: 1
    Date:
    Observer: Brendan Beers
    Location: Running Deer & Cottonwood Hollow Natural Areas Larimer
  379. Eastern Meadowlark Sturnella magna
    # Count: 1
    Date:
    Observer: Greg Mihalik
    Location: Mount Ouray SWA Chaffee
  380. White-tailed Kite Elanus leucurus
    # Count: 1
    Date:
    Observer: Chris MacDonald
    Location: 20021–20133 County Road B, Cortez US-CO 37.23939, -108.67516 Montezuma
  381. Cactus Wren Campylorhynchus brunneicapillus
    # Count: 1
    Date:
    Observer: Brian Genge
    Location: Comanche National Grassland, La Junta US-CO 37.66148, -103.62332 Otero
  382. Common Redpoll Acanthis flammea
    # Count: 2
    Date:
    Observer: John W. Cobb
    Location: Stapleton Greenway Park Denver
  383. American Woodcock Scolopax minor
    # Count: 1
    Date:
    Observer: Jacob Job NFC Station
    Location: LovelandNFCStation - NFC Larimer
  384. Rusty Blackbird Euphagus carolinus
    # Count: 1
    Date:
    Observer: John Chanin
    Location: Wheat Ridge Greenbelt Jefferson
  385. Brant Branta bernicla
    # Count: 1
    Date:
    Observer: Tony Leukering
    Location: Monte Vista NWR Rio Grande
  386. Tundra Swan Cygnus columbianus
    # Count: 1
    Date:
    Observer: Noah Vallee
    Location: Highline Lake SP Mesa
  387. Black Vulture Coragyps atratus
    # Count: 1
    Date:
    Observer: John Bregar
    Location: Private residence La Plata
  388. Short-billed Gull Larus brachyrhynchus
    # Count: 1
    Date:
    Observer: Irene Fortune
    Location: Pond at Hwy. 287 & West 71st St. Larimer
  389. Glaucous Gull Larus hyperboreus
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Black Hollow Reservoir Weld
  390. Snow Bunting Plectrophenax nivalis
    # Count: 1
    Date:
    Observer: Tammy Sanders
    Location: Monte Vista NWR Rio Grande
  391. Great Black-backed Gull Larus marinus
    # Count: 1
    Date:
    Observer: Ric Olson
    Location: Pueblo West Gravel Pit Pueblo
  392. Yellow-billed Loon Gavia adamsii
    # Count: 1
    Date:
    Observer: Ric Olson
    Location: Lake Pueblo SP--North Shore Marina Pueblo
  393. Glaucous-winged Gull Larus glaucescens
    # Count: 1
    Date:
    Observer: Brian Genge
    Location: Prewitt Reservoir SWA (Washington Co) Washington
  394. Cassia Crossbill Loxia sinesciuris
    # Count: 2
    Date:
    Observer: JoAnn Potter Riggle 🦤
    Location: Sylvan Lake SP Eagle
  395. White-winged Scoter Melanitta deglandi
    # Count: 2
    Date:
    Observer: Eric DeFonso 🦑
    Location: Great Western Reservoir (closed to public) Broomfield
  396. Black Rail Laterallus jamaicensis
    # Count: 1
  397. Gunnison Sage-Grouse Centrocercus minimus
    # Count: 10
  398. Lesser Prairie-Chicken Tympanuchus pallidicinctus
    # Count: X
  399. Gyrfalcon Falco rusticolus
    # Count: 1
  400. Long-eared Owl Asio otus
    # Count: 1

Exotic: Provisional (1)

  1. Ring-necked Pheasant Phasianus colchicus
    # Count: 1
    Date:
    Observer: Joey Angstman
    Location: South Republican SWA--Wagon Wheel Campground area Yuma

Exotic: Escapee (8)

  1. Mute Swan Cygnus olor
    # Count: 2
    Date:
    Observer: Joe Kipper
    Location: Swan Pond, F Street, Greeley, Colorado, US (40.443, -104.754) Weld
  2. Graylag Goose Anser anser
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Denver City Park--lakes Denver
  3. Swan Goose Anser cygnoides
    # Count: 1
    Date:
    Observer: Joe Chen
    Location: Denver City Park Denver
  4. Muscovy Duck Cairina moschata
    # Count: 1
    Date:
    Observer: Doug Faulkner
    Location: Riverside Park (Morgan Co) Morgan
  5. Helmeted Guineafowl Numida meleagris
    # Count: 4
    Date:
    Observer: Robert Spaul
    Location: Bingham Hill Cemetery Larimer
  6. Indian Peafowl Pavo cristatus
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Cozzens Lake (private property - view from road only!) Weld
  7. Mandarin Duck Aix galericulata
    # Count: 1
    Date:
    Observer: Misty Walters
    Location: Squirrel Creek Road Reservoir El Paso
  8. California Quail Callipepla californica
    # Count: 1
    Date:
    Observer: Luke Pheneger
    Location: Higbee Valley Road (Otero CR 804) Otero

Hybrids (39)

  1. Graylag x Canada Goose (hybrid) Anser anser x Branta canadensis
    # Count: 1
    Date:
    Observer: Jane Lee
    Location: Belmar Park Jefferson
  2. Lazuli x Indigo Bunting (hybrid) Passerina amoena x cyanea
    # Count: 1
    Date:
    Observer: David Suddjian
    Location: Pryor (Santa Clara Creek) Huerfano
  3. Graylag x Swan Goose (hybrid) Anser anser x cygnoides
    # Count: 1
    Date:
    Observer: Patrick O'Driscoll
    Location: Denver City Park Denver
  4. Greater White-fronted x Canada Goose (hybrid) Anser albifrons x Branta canadensis
    # Count: 1
    Date:
    Observer: Patrick O'Driscoll
    Location: Denver City Park Denver
  5. Black x Eastern Phoebe (hybrid) Sayornis nigricans x phoebe
    # Count: 1
    Date:
    Observer: Debra Bogar
    Location: Denver Botanic Gardens Chatfield Farms Jefferson
  6. Mallard x Mexican Duck (hybrid) Anas platyrhynchos x diazi
    # Count: 1
    Date:
    Observer: Mike Thompson
    Location: Grouse Point Ranch Montezuma
  7. Blue-winged x Cinnamon Teal (hybrid) Spatula discors x cyanoptera
    # Count: 1
    Date:
    Observer: Scott Shaum
    Location: Antero Reservoir--southeast island Park
  8. Bullock's x Baltimore Oriole (hybrid) Icterus bullockii x galbula
    # Count: 1
    Date:
    Observer: Tom Curtis
    Location: Colt drive, Loveland, Colorado Larimer
  9. Rose-breasted x Black-headed Grosbeak (hybrid) Pheucticus ludovicianus x melanocephalus
    # Count: 1
    Date:
    Observer: Robert Raker
    Location: Chatfield SP--Audubon Center & Trails Jefferson
  10. Spotted x Eastern Towhee (hybrid) Pipilo maculatus x erythrophthalmus
    # Count: 1
    Date:
    Observer: Steven Mlodinow
    Location: Upper Queens/Neeskah Reservoir Kiowa
  11. Downy x Ladder-backed Woodpecker (hybrid) Dryobates pubescens x scalaris
    # Count: 1
    Date:
    Observer: Steven Mlodinow
    Location: Burchfield SWA Baca
  12. Glossy x White-faced Ibis (hybrid) Plegadis falcinellus x chihi
    # Count: 1
    Date:
    Observer: Steven Mlodinow
    Location: Walsh WTP Baca
  13. Canyon x Spotted Towhee (hybrid) Melozone fusca x Pipilo maculatus
    # Count: 1
    Date:
    Observer: Jim Merritt
    Location: Red Rock Canyon Open Space El Paso
  14. Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripes
    # Count: 1
    Date:
    Observer: David Wade
    Location: Watson Lake Larimer
  15. Black-capped x Mountain Chickadee (hybrid) Poecile atricapillus x gambeli
    # Count: 1
    Date:
    Observer: Kevin Williams
    Location: Big Dry Creek Trail--S Colorado Blvd to S University Blvd Arapahoe
  16. Northern Shoveler x Gadwall (hybrid) Spatula clypeata x Mareca strepera
    # Count: 1
    Date:
    Observer: Jay Breidt
    Location: Ryan Gulch Reservoir Larimer
  17. Gadwall x Mallard (hybrid) Mareca strepera x Anas platyrhynchos
    # Count: 1
    Date:
    Observer: Frank Farrell
    Location: Chatfield SP--Swim Beach Jefferson
  18. Bufflehead x goldeneye sp. (hybrid) Bucephala albeola x clangula/islandica
    # Count: 1
    Date:
    Observer: Timo Mitzen
    Location: Kendrick Way Ponds Jefferson
  19. Snow/Ross's x Cackling/Canada Goose (hybrid) Anser caerulescens/rossii x Branta hutchinsii/canadensis
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Franklin Lake Weld
  20. Mallard x Mexican/Mottled Duck (hybrid) Anas platyrhynchos x diazi/fulvigula
    # Count: 1
    Date:
    Observer: Spencer Santi
    Location: Watson Lake Larimer
  21. Snow x Cackling Goose (hybrid) Anser caerulescens x Branta hutchinsii
    # Count: 1
    Date:
    Observer: Craig Robson
    Location: Franklin Lake Weld
  22. Domestic goose sp. x Canada Goose (hybrid) Anser sp. (Domestic type) x Branta canadensis
    # Count: 1
    Date:
    Observer: Don Marsh
    Location: Cerise Regional Park Montrose
  23. Herring x Glaucous-winged Gull (hybrid) Larus argentatus x glaucescens
    # Count: 1
    Date:
    Observer: Nick Komar
    Location: Windsor Lake Weld
  24. Red-tailed x Ferruginous Hawk (hybrid) Buteo jamaicensis x regalis
    # Count: 1
    Date:
    Observer: Ted Floyd
    Location: Medano Ranch Alamosa
  25. Snow x Canada Goose (hybrid) Anser caerulescens x Branta canadensis
    # Count: 1
    Date:
    Observer: Freya Williams
    Location: Washington Park--Grasmere Lake Denver
  26. Cinnamon Teal x Northern Shoveler (hybrid) Spatula cyanoptera x clypeata
    # Count: 1
    Date:
    Observer: Bob Plohr
    Location: Monte Vista National Wildlife Refuge, Monte Vista US-CO (37.4829,-106.1324) Rio Grande
  27. Ross's x Cackling Goose (hybrid) Anser rossii x Branta hutchinsii
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Windsor Reservoir Weld
  28. Greater White-fronted x Cackling Goose (hybrid) Anser albifrons x Branta hutchinsii
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Windsor Reservoir Weld
  29. American Wigeon x Mallard (hybrid) Mareca americana x Anas platyrhynchos
    # Count: 1
    Date:
    Observer: David Wade
    Location: North Shields Pond Natural Area Larimer
  30. Ross's x Canada Goose (hybrid) Anser rossii x Branta canadensis
    # Count: 1
    Date:
    Observer: Scott Somershoe
    Location: Clement Park and Johnson Reservoir Jefferson
  31. Snow x Greater White-fronted Goose (hybrid) Anser caerulescens x albifrons
    # Count: 1
    Date:
    Observer: Chuck Aid
    Location: Stewart's Pond Weld
  32. Hooded x Common Merganser (hybrid) Lophodytes cucullatus x Mergus merganser
    # Count: 1
    Date:
    Observer: Ryan Votta
    Location: Animas River--Huck Finn Pond & Hatchery area La Plata
  33. Muscovy Duck x Mallard (hybrid) Cairina moschata x Anas platyrhynchos
    # Count: 1
    Date:
    Observer: T B
    Location: Memorial Park & Prospect Lake El Paso
  34. Mallard x Northern Pintail (hybrid) Anas platyrhynchos x acuta
    # Count: 1
    Date:
    Observer: Anne Craig
    Location: Bear Creek Greenbelt--S Kipling Pkwy to S Wadsworth Blvd Jefferson
  35. Common x Barrow's Goldeneye (hybrid) Bucephala clangula x islandica
    # Count: 1
    Date:
    Observer: Nic Korte
    Location: Colorado River SP--Connected Lakes section Mesa
  36. Bufflehead x Common Goldeneye (hybrid) Bucephala albeola x clangula
    # Count: 1
    Date:
    Observer: Jon (Yonatan) Rubins
    Location: South Platte River--E 78th Ave Adams
  37. Red-naped x Red-breasted Sapsucker (hybrid) Sphyrapicus nuchalis x ruber
    # Count: 1
    Date:
    Observer: Bryan Guarente
    Location: Bohn Park Boulder
  38. Herring x Glaucous Gull (hybrid) Larus argentatus x hyperboreus
    # Count: 1
    Date:
    Observer: Steven Mlodinow
    Location: John Martin Reservoir Bent
  39. Ring-necked Duck x Lesser Scaup (hybrid) Aythya collaris x affinis
    # Count: 1
    Date:
    Observer: Jeff Percell
    Location: Erie Reservoir Boulder

Additional Taxa (144)

  1. swallow sp. Hirundinidae sp.
    # Count: 10
    Date:
    Observer: Eve Lempriere
    Location: Niwot Loop Trail Boulder
  2. gull sp. Larinae sp.
    # Count: 8
    Date:
    Observer: Deanna Einspahr
    Location: Steamboat Lake SP Routt
  3. pewee sp. (Contopus sp.) Contopus sp.
    # Count: 1
    Date:
    Observer: Lauren Dooley
    Location: Tomahawk SWA Park
  4. Cackling/Canada Goose Branta hutchinsii/canadensis
    # Count: 1
    Date:
    Observer: Joey Angstman
    Location: South Republican SWA--south side Yuma
  5. hummingbird sp. Trochilidae sp.
    # Count: 1
    Date:
    Observer: BEN BAILEY
    Location: County Road 200 Archuleta
  6. passerine sp. Passeriformes sp.
    # Count: 2
    Date:
    Observer: Emily Grason
    Location: 1015 Ford St, Golden US-CO 39.75839, -105.22068 Jefferson
  7. thrush sp. Turdidae sp.
    # Count: 1
    Date:
    Observer: Rick Luehrs
    Location: Kane Ranch Open Space El Paso
  8. white egret sp. Egretta/Bubulcus/Ardea sp.
    # Count: 9
    Date:
    Observer: Pablo Hadzeriga
    Location: Cherry Creek SP--Cottonwood Creek Wetlands Arapahoe
  9. hawk sp. Accipitridae sp. (hawk sp.)
    # Count: 1
    Date:
    Observer: Joan Grant
    Location: Haxtun sewage ponds Phillips
  10. dabbling duck sp. Anatidae sp. (dabbling duck sp.)
    # Count: 12
    Date:
    Observer: David Suddjian
    Location: Orlando Reservoir Huerfano
  11. Buteo sp. Buteo sp.
    # Count: 1
    Date:
    Observer: Steve Methven
    Location: Rocky Mountain Arsenal NWR Adams
  12. new world flycatcher sp. Tyrannidae sp.
    # Count: 1
    Date:
    Observer: Mason Currier
    Location: Estes Park YMCA Camp Larimer
  13. new world sparrow sp. Passerellidae sp.
    # Count: 1
    Date:
    Observer: Rick Luehrs
    Location: Farish Recreation Area (restricted access) El Paso
  14. Cassin's/Western Kingbird Tyrannus vociferans/verticalis
    # Count: 1
    Date:
    Observer: David Suddjian
    Location: Las Animas CR 54.2 Las Animas
  15. Lazuli/Indigo Bunting Passerina amoena/cyanea
    # Count: 6
    Date:
    Observer: Nathan Pieplow
    Location: Well Gulch Nature Trail Larimer
  16. nuthatch sp. Sitta sp.
    # Count: 1
    Date:
    Observer: Denise Bretting
    Location: Waterford Apartments CE (closed to the public) Larimer
  17. woodpecker sp. Picidae sp.
    # Count: 1
    Date:
    Observer: Kieran Schnitzspahn
    Location: Rocky Mountain NP--Lumpy Ridge Trail Larimer
  18. plover sp. Charadriidae sp.
    # Count: 1
    Date:
    Observer: John Shenot
    Location: Larimer CR 5 from CR 82 to 92 (bird from road) Larimer
  19. Tree/Violet-green Swallow Tachycineta bicolor/thalassina
    # Count: 10
    Date:
    Observer: Anonymous eBirder
    Location: 611 Park River Pl, Estes Park US-CO 40.36810, -105.53244 Larimer
  20. Accipiter sp. Accipiter sp.
    # Count: 1
    Date:
    Observer: Trey Rogers
    Location: Browns Canyon NM--Ruby Mountain Campground area Chaffee
  21. Domestic goose sp. (Domestic type) Anser sp. (Domestic type)
    # Count: 12
    Date:
    Observer: Bob Diehl
    Location: Centennial Park (Fremont Co.) Fremont
  22. nighthawk sp. Chordeiles sp.
    # Count: 1
    Date:
    Observer: Mike Thompson
    Location: San Juan National Forest - Headquarters, Mancos US-CO 37.43656, -108.08499 Montezuma
  23. blackbird sp. Icteridae sp.
    # Count: 1
    Date:
    Observer: ℱrank ℳorgan
    Location: Equalizer Lake Larimer
  24. duck sp. Anatidae (duck sp.)
    # Count: 5
    Date:
    Observer: Tyler Wilson
    Location: Agate (town) Elbert
  25. shorebird sp. Charadriiformes sp.
    # Count: 3
    Date:
    Observer: Tyler Wilson
    Location: Agate (town) Elbert
  26. swift sp. Apodidae sp.
    # Count: 1
    Date:
    Observer: James Kachline
    Location: Sloan's Lake Park Denver
  27. Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperii
    # Count: 1
    Date:
    Observer: Mel Cooksey
    Location: S Burnt Mill Road--Greenhorn Creek crossing Pueblo
  28. bluebird sp. Sialia sp.
    # Count: 1
    Date:
    Observer: Mel Cooksey
    Location: S Burnt Mill Road--Greenhorn Creek crossing Pueblo
  29. towhee sp. Melozone/Pipilo sp.
    # Count: 1
    Date:
    Observer: Calliope Ketola
    Location: San Luis (town) Costilla
  30. pigeon/dove sp. Columbidae sp.
    # Count: 3
    Date:
    Observer: Ted Floyd
    Location: Waneka Lake/Greenlee Preserve Boulder
  31. new world goldfinch sp. Spinus sp. (goldfinch sp.)
    # Count: 1
    Date:
    Observer: Ted Floyd
    Location: Waneka Lake/Greenlee Preserve Boulder
  32. sapsucker sp. Sphyrapicus sp.
    # Count: 1
    Date:
    Observer: Zach Poland
    Location: 520 King's Crossing Rd, Winter Park US-CO 39.91677, -105.78995 Grand
  33. finch sp. Fringillidae sp.
    # Count: 1
    Date:
    Observer: Cordelia Edison
    Location: 1431 Pearl Street, Denver, Colorado, US (39.739, -104.98) 3rd Floor Denver
  34. Empidonax sp. Empidonax sp.
    # Count: 1
    Date:
    Observer: angelique mori
    Location: 895 Tabor St, Lakewood US-CO 39.73043, -105.13011 Jefferson
  35. Double-crested/Neotropic Cormorant Nannopterum auritum/brasilianum
    # Count: 1
    Date:
    Observer: Wes Johnson
    Location: Sloan's Lake Park Denver
  36. Greater/Lesser Scaup Aythya marila/affinis
    # Count: 1
    Date:
    Observer: Katie Conlin
    Location: Clear Creek Reservoir Chaffee
  37. Cassin's/Plumbeous Vireo Vireo cassinii/plumbeus
    # Count: 1
    Date:
    Observer: Christine Snitkin
    Location: Heil Ranch--Picture Rock Trail Boulder
  38. Black-capped/Mountain Chickadee Poecile atricapillus/gambeli
    # Count: 2
    Date:
    Observer: Ted Floyd
    Location: Fowler Trail Boulder
  39. Rose-breasted/Black-headed Grosbeak Pheucticus ludovicianus/melanocephalus
    # Count: 2
    Date:
    Observer: Ted Floyd
    Location: Fowler Trail Boulder
  40. Western/Clark's Grebe Aechmophorus occidentalis/clarkii
    # Count: 2
    Date:
    Observer: ℱrank ℳorgan
    Location: Frank SWA & Jodee Reservoir Larimer
  41. Spotted/Eastern Towhee (Rufous-sided Towhee) Pipilo maculatus/erythrophthalmus
    # Count: 1
    Date:
    Observer: Julie Ann Householder
    Location: David & Julie's Denver
  42. vireo sp. Vireo sp.
    # Count: 1
    Date:
    Observer: linda p
    Location: berwind canyon Las Animas
  43. peep sp. Calidris sp. (peep sp.)
    # Count: 4
    Date:
    Observer: Cole Sage
    Location: Ball Reservoir SE overlook Elbert
  44. Hammond's/Dusky Flycatcher Empidonax hammondii/oberholseri
    # Count: 1
    Date:
    Observer: Mike Thompson
    Location: San Juan National Forest - Headquarters, Mancos US-CO 37.42687, -108.09667 Montezuma
  45. Bullock's/Baltimore Oriole Icterus bullockii/galbula
    # Count: 1
    Date:
    Observer: Julia Auckland
    Location: Idalia Park Denver
  46. Downy/Hairy Woodpecker Dryobates pubescens/villosus
    # Count: 2
    Date:
    Observer: jingyao wu
    Location: Basalt River Park Eagle
  47. grackle sp. Quiscalus sp.
    # Count: 45
    Date:
    Observer: Jane Stulp
    Location: Farm Yard Prowers
  48. grebe sp. Podicipedidae sp.
    # Count: 1
    Date:
    Observer: Penguin Iceberg
    Location: Stagecoach SP Routt
  49. goose sp. Anatidae (goose sp.)
    # Count: 4
    Date:
    Observer: Cordelia Edison
    Location: 1431 Pearl Street, Denver, Colorado, US (39.739, -104.98) 3rd Floor Denver
  50. small falcon sp. Falco sp. (small falcon sp.)
    # Count: 1
    Date:
    Observer: Cordelia Edison
    Location: 1431 Pearl Street, Denver, Colorado, US (39.739, -104.98) 3rd Floor Denver
  51. Golden/Bald Eagle Aquila chrysaetos/Haliaeetus leucocephalus
    # Count: 1
    Date:
    Observer: Penguin Iceberg
    Location: U.S. 40, Steamboat Springs Point 2 Routt
  52. phoebe sp. Sayornis sp.
    # Count: 1
    Date:
    Observer: Peter DellaVecchia
    Location: Chatfield SP--Chatfield Wetlands Jefferson
  53. Forster's/Common Tern Sterna forsteri/hirundo
    # Count: 1
    Date:
    Observer: Jean Maguire
    Location: Rocky Mountain Arsenal NWR--Lake Mary Adams
  54. Larus sp. Larus sp.
    # Count: 20
    Date:
    Observer: Bryan Tarbox
    Location: Fossil Creek Reservoir & Regional Open Space Larimer
  55. crow/raven sp. Corvus sp.
    # Count: 2
    Date:
    Observer: Penguin Iceberg
    Location: Colorado 13 Point 5, Meeker Rio Blanco
  56. new world warbler sp. Parulidae sp.
    # Count: 1
    Date:
    Observer: Jedediah Smith
    Location: Clifton Nature Park Mesa
  57. Blue-winged/Cinnamon Teal Spatula discors/cyanoptera
    # Count: 10
    Date:
    Observer: Lucas Bobay
    Location: Antero Reservoir Park
  58. solitary vireo sp. Vireo cassinii/solitarius/plumbeus
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: 961–963 Genesee Mountain Rd, Golden US-CO 39.69842, -105.29187 Jefferson
  59. crossbill sp. Loxia sp.
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: 961–963 Genesee Mountain Rd, Golden US-CO 39.69842, -105.29187 Jefferson
  60. raven sp. Corvus sp. (raven sp.)
    # Count: 1
    Date:
    Observer: My-Lan Le
    Location: High Peaks Campground (Private) Saguache
  61. Common/Red-breasted Merganser Mergus merganser/serrator
    # Count: 1
    Date:
    Observer: Kathy Farrell
    Location: Manitou Lake Teller
  62. Ruby-throated/Black-chinned Hummingbird Archilochus colubris/alexandri
    # Count: 1
    Date:
    Observer: Lark BenDaniel
    Location: Wheat Ridge Greenbelt--West Lake Jefferson
  63. teal sp. Anatidae sp. (teal sp.)
    # Count: 4
    Date:
    Observer: Eric Walters
    Location: Cathy Fromme Prairie Natural Area Larimer
  64. Western/Eastern Meadowlark Sturnella neglecta/magna
    # Count: 1
    Date:
    Observer: Jane Stulp
    Location: Farm Yard Prowers
  65. Ruby-crowned/Golden-crowned Kinglet Corthylio calendula/Regulus satrapa
    # Count: 1
    Date:
    Observer: Bruce Miller
    Location: 2034 County Road 126, Nederland US-CO 39.97804, -105.50883 Boulder
  66. owl sp. Strigiformes sp.
    # Count: 1
    Date:
    Observer: Lori Zabel
    Location: Pearl Lake SP Routt
  67. Mallard/Mexican Duck Anas platyrhynchos/diazi
    # Count: 15
    Date:
    Observer: Kristin Sorensen
    Location: Flanders Neighborhood Park, Longmont US-CO 40.19730, -105.14739 Boulder
  68. Western/Eastern Wood-Pewee Contopus sordidulus/virens
    # Count: 1
    Date:
    Observer: Alice Tariot
    Location: 1386 Preserve Cir, Golden US-CO 39.69155, -105.28225 Jefferson
  69. Eurasian/American Wigeon Mareca penelope/americana
    # Count: 1
    Date:
    Observer: Jeffrey White
    Location: Cottonwood Glen Park, Fort Collins US-CO 40.54360, -105.13042 Larimer
  70. falcon sp. Falco sp.
    # Count: 1
    Date:
    Observer: Lara Cueni
    Location: South Platte Park--Carson Nature Center Arapahoe
  71. Catharus sp. Catharus sp.
    # Count: 1
    Date:
    Observer: Joe Kipper
    Location: Dixon Reservoir Larimer
  72. new world oriole sp. Icterus sp.
    # Count: 1
    Date:
    Observer: Christopher Fimbel
    Location: Standley Lake Park--south shore Jefferson
  73. Sterna sp. Sterna sp.
    # Count: 2
    Date:
    Observer: David Suddjian
    Location: Antero Reservoir Park
  74. tern sp. Sterninae sp.
    # Count: 1
    Date:
    Observer: Ben Sampson
    Location: South Platte Park Arapahoe
  75. diurnal raptor sp. Accipitriformes/Falconiformes sp.
    # Count: 1
    Date:
    Observer: Ty Phipps
    Location: Castlewood Canyon SP--Inner Canyon/Lake Gulch Loop Douglas
  76. Sturnella meadowlark sp. Sturnella sp.
    # Count: 1
    Date:
    Observer: Dianne Simonds
    Location: Coot Lake South Near Boulder res Boulder
  77. phalarope sp. Phalaropus sp.
    # Count: 1
    Date:
    Observer: Katie Conlin
    Location: County Road 80, Hartsel US-CO 38.99528, -105.88005 Park
  78. longspur sp. Calcarius/Rhynchophanes sp.
    # Count: 1
    Date:
    Observer: Nick Komar
    Location: Pawnee NG Bird Tour—Stops 9-11 (CR-104) Weld
  79. Yellow-crowned/Black-crowned Night Heron Nycticorax nycticorax/Nyctanassa violacea
    # Count: 1
    Date:
    Observer: Deb Davis
    Location: 13992 E Marina Dr, Aurora US-CO 39.66335, -104.82470 Arapahoe
  80. Glossy/White-faced Ibis Plegadis falcinellus/chihi
    # Count: 2
    Date:
    Observer: Oliver Smith
    Location: Utah Park Arapahoe
  81. Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/traillii
    # Count: 1
    Date:
    Observer: Brandon K. Percival
    Location: Chico Basin Ranch (Pueblo Co) (mandatory registration required at www.aikenaudubon.com) Pueblo
  82. Chimney/Vaux's Swift Chaetura pelagica/vauxi
    # Count: 1
    Date:
    Observer: Sequoia Wrens
    Location: Alpine Mall Boulder
  83. large falcon sp. Falco sp. (large falcon sp.)
    # Count: 2
    Date:
    Observer: Prineet Anand
    Location: Rocky Mountain NP--Lumpy Ridge Trail Larimer
  84. nightjar sp. Caprimulgidae sp.
    # Count: 1
    Date:
    Observer: Greg Mihalik
    Location: Frantz Lake SWA Chaffee
  85. tanager sp. (Piranga sp.) Piranga sp.
    # Count: 1
    Date:
    Observer: Tanja Britton
    Location: Home El Paso
  86. Spizella sp. Spizella sp.
    # Count: 1
    Date:
    Observer: Archer Silverman
    Location: Pineridge Natural Area Larimer
  87. Buteo/eagle sp. Buteo/eagle sp.
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394 Weld
  88. Spizella sp./American Tree Sparrow Spizella/Spizelloides sp.
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394 Weld
  89. Zonotrichia sp. Zonotrichia sp.
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394 Weld
  90. Lincoln's/Swamp Sparrow Melospiza lincolnii/georgiana
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394 Weld
  91. Western/Chihuahuan Meadowlark Sturnella neglecta/lilianae
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394 Weld
  92. Rusty/Brewer's Blackbird Euphagus carolinus/cyanocephalus
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394 Weld
  93. Passerina sp. Passerina sp.
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394 Weld
  94. MacGillivray's/Mourning Warbler Geothlypis tolmiei/philadelphia
    # Count: 1
    Date:
    Observer: Glenn Walbek
    Location: Thompson Ranch (Lincoln Co; private) Lincoln
  95. Aythya sp. Aythya sp.
    # Count: 1
    Date:
    Observer: Kenyon Moon
    Location: Lowry Park area--Aurora-Kelley Road Reservoir & Great Lawn Park Denver
  96. large swift sp. Apodidae sp. (large swift sp.)
    # Count: 3
    Date:
    Observer: Ginger Hipszky
    Location: 5805 Bourke Dr, Colorado Springs, CO 80919 El Paso
  97. wren sp. Troglodytidae sp.
    # Count: 1
    Date:
    Observer: Gwendolyn Tenney
    Location: Orient Land Trust--Valley View Hot Springs (reservations required) Saguache
  98. Scolopacidae sp. Scolopacidae sp.
    # Count: 1
    Date:
    Observer: Rob Cassady
    Location: Lagerman Agricultural Preserve--Lagerman Reservoir Boulder
  99. Common/Barrow's Goldeneye Bucephala clangula/islandica
    # Count: 1
    Date:
    Observer: David Orth-Moore
    Location: Sands Lake SWA Chaffee
  100. Gray/Dusky Flycatcher Empidonax wrightii/oberholseri
    # Count: 1
    Date:
    Observer: Peter Nelson
    Location: Chatfield SP--Audubon Center & Trails Jefferson
  101. Setophaga sp. Setophaga sp.
    # Count: X
    Date:
    Observer: Luke Pheneger
    Location: Andrick Ponds SWA Morgan
  102. Selasphorus sp. Selasphorus sp.
    # Count: 2
    Date:
    Observer: Rowen Sills
    Location: Estes Park Larimer
  103. bird sp. Aves sp.
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: County Road 5, Carr, Colorado, US (40.879, -104.981) Larimer
  104. rosy-finch sp. Leucosticte sp.
    # Count: 3
    Date:
    Observer: linda p
    Location: Molas Pass Summit San Juan
  105. chickadee sp. Poecile sp.
    # Count: 1
    Date:
    Observer: John Rawinski
    Location: Monte Vista Cemetery Rio Grande
  106. Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceus
    # Count: 8
    Date:
    Observer: Cole Sage
    Location: Stewart's Pond Weld
  107. Myiarchus sp. Myiarchus sp.
    # Count: 1
    Date:
    Observer: Mark Peterson
    Location: Brett Gray Ranch (restricted access) Lincoln
  108. Haemorhous sp. Haemorhous sp.
    # Count: 1
    Date:
    Observer: Luke Pheneger
    Location: Gypsum Ponds Eagle
  109. Loggerhead/Northern Shrike Lanius ludovicianus/borealis
    # Count: 3
    Date:
    Observer: Amy Borchardt
    Location: Chico Basin Ranch--headquarters area (Pueblo Co) (mandatory registration required at www.aikenaudubon.com) Pueblo
  110. Horned/Eared Grebe Podiceps auritus/nigricollis
    # Count: 1
    Date:
    Observer: eileen ross
    Location: Jerry Creek SWA Mesa
  111. Red/Red-necked Phalarope Phalaropus fulicarius/lobatus
    # Count: 20
    Date:
    Observer: David Suddjian
    Location: Cheraw Lake Otero
  112. small plover sp. Charadrius/Anarhynchus sp.
    # Count: 2
    Date:
    Observer: Nancy Petruso
    Location: CSU--Environmental Learning Center Larimer
  113. Bohemian/Cedar Waxwing Bombycilla garrulus/cedrorum
    # Count: 1
    Date:
    Observer: Carolyn Gunn
    Location: Dolores (Town) Montezuma
  114. Cliff/Cave Swallow Petrochelidon pyrrhonota/fulva
    # Count: 50
    Date:
    Observer: Trenton Voytko
    Location: East Lake Shores Park Adams
  115. jay sp. Corvidae sp. (jay sp.)
    # Count: 4
    Date:
    Observer: Phillip Gerkin
    Location: Ponderosa Preserve (restricted access) Arapahoe
  116. Lesser/Greater Yellowlegs Tringa flavipes/melanoleuca
    # Count: X
    Date:
    Observer: Susan Rosine
    Location: Loloff Reservoir Weld
  117. Western/Semipalmated Sandpiper Calidris mauri/pusilla
    # Count: 1
    Date:
    Observer: Matt Clark
    Location: Chatfield SP (Douglas Co) Douglas
  118. large shorebird sp. Scolopacidae sp. (large shorebird sp.)
    # Count: 1
    Date:
    Observer: Frank and Nancy Hatch
    Location: CommonGround (Westerly) Wetlands Denver
  119. eagle sp. Accipitridae sp. (eagle sp.)
    # Count: 1
    Date:
    Observer: Gavin Allvine
    Location: Fountain Creek Regional Park--Willow Spring Rd. area El Paso
  120. loon sp. Gavia sp.
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Clear Creek Reservoir Chaffee
  121. Downy/Ladder-backed Woodpecker Dryobates pubescens/scalaris
    # Count: 1
    Date:
    Observer: Steven Mlodinow
    Location: Burchfield SWA Baca
  122. mimid sp. Mimidae sp.
    # Count: 1
    Date:
    Observer: Alexis Fuller
    Location: Pueblo Nature & Wildlife Discovery Center Pueblo
  123. Black-bellied Plover/golden-plover sp. Pluvialis sp.
    # Count: 1
    Date:
    Observer: Kieran Schnitzspahn
    Location: Neegronda Reservoir Kiowa
  124. Calidris sp. Calidris sp.
    # Count: 1
    Date:
    Observer: Melissa May
    Location: Pastorius Reservoir La Plata
  125. rail/crake sp. Rallidae sp. (rail/crake sp.)
    # Count: 1
    Date:
    Observer: Winston Liu
    Location: US-50 W, Las Animas US-CO 38.08068, -103.21994 Bent
  126. Philadelphia/Warbling Vireo Vireo philadelphicus/gilvus
    # Count: 1
    Date:
    Observer: Kieran Schnitzspahn
    Location: Lake Hasty (lake and campground) Bent
  127. Cassin's/Blue-headed Vireo Vireo cassinii/solitarius
    # Count: 1
    Date:
    Observer: Erik Hendrickson
    Location: Melody Tempel Grove Bent
  128. heron sp. Ardeidae sp.
    # Count: 1
    Date:
    Observer: Linda Andes-Georges
    Location: Two Buttes SWA (as a whole) Baca
  129. merganser sp. Mergellus/Lophodytes/Mergus sp.
    # Count: 1
    Date:
    Observer: Kathy Miller
    Location: Big Johnson Reservoir & Bluestem Prairie Open Space El Paso
  130. Snow/Ross's Goose Anser caerulescens/rossii
    # Count: 10
    Date:
    Observer: The Bushmaster
    Location: 80652, Roggen US-CO 40.17026, -104.29312 Weld
  131. yellow-bellied kingbird sp. Tyrannus sp. (yellow-bellied)
    # Count: 1
    Date:
    Observer: Brian Devine
    Location: Pastorius Reservoir La Plata
  132. Yellow-bellied/Red-naped Sapsucker Sphyrapicus varius/nuchalis
    # Count: 1
    Date:
    Observer: David Malakoff
    Location: Lagerman Agricultural Preserve--Lagerman Reservoir Boulder
  133. Eurasian/African Collared-Dove Streptopelia decaocto/roseogrisea
    # Count: 15
    Date:
    Observer: Jonathan Reitz
    Location: West Pond Prowers
  134. Cooper's Hawk/American Goshawk Accipiter cooperii/atricapillus
    # Count: 1
    Date:
    Observer: Joyce Michael
    Location: Dinosaur Ridge Hawkwatch Jefferson
  135. Purple/Cassin's Finch Haemorhous purpureus/cassinii
    # Count: 1
    Date:
    Observer: Patricia Barry
    Location: Private Ranch Jackson
  136. swan sp. Cygnus sp.
    # Count: 1
    Date:
    Observer: Christian Nunes
    Location: 81652, Silt US-CO (39.5394,-107.6750) Garfield
  137. Tringa sp. Tringa sp.
    # Count: 2
    Date:
    Observer: Joe Kipper
    Location: Duck Lake (Larimer Co.) Larimer
  138. Streptopelia sp. Streptopelia sp.
    # Count: 1
    Date:
    Observer: Ted Floyd
    Location: Waneka Lake/Greenlee Preserve Boulder
  139. Herring/Iceland Gull Larus argentatus/glaucoides
    # Count: 2
    Date:
    Observer: Joe Grzybowski
    Location: Windsor Lake Weld
  140. white-winged gull sp. Larus sp. (white-winged gull sp.)
    # Count: 1
    Date:
    Observer: Nick Komar
    Location: Boyd Lake Larimer
  141. grouse sp. Tetraoninae sp.
    # Count: 1
    Date:
    Observer: Matthew Swoveland
    Location: Snodgrass Mountain Gunnison
  142. Trumpeter/Tundra Swan Cygnus buccinator/columbianus
    # Count: 2
    Date:
    Observer: David Wade
    Location: Rawhide Energy Station/Hamilton Reservoir Larimer
  143. Long-eared/Short-eared Owl Asio otus/flammeus
    # Count: 1
    Date:
    Observer: Taylor Bitzer
    Location: Grandview Cemetery Larimer
  144. waterfowl sp. Anatidae sp.
    # Count: 500
    Date:
    Observer: Diego Casanova
    Location: Cherry Creek SP--Lake Loop Arapahoe