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Bird List

Updated ~3 hours ago
517 All Years 423 This Year 2024 244 This Month Nov 2024
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  1. Species Name
    Count
    Date
    Observer
    Location

Native and Naturalized (243)

  1. Chukar Alectoris chukar
    # Count: 2
    Date:
    Observer: Skyler Bol
    Location: Escalante Canyon--Gunnison River to Escalante Rim Road Delta
  2. Northern House Wren Troglodytes aedon
    # Count: 1
    Date:
    Observer: Ryan Votta
    Location: Animas River--Huck Finn Pond & Hatchery area La Plata
  3. Pacific Wren Troglodytes pacificus
    # Count: 1
    Date:
    Observer: Eric Konkol
    Location: Young Gulch Trail Larimer
  4. Western Kingbird Tyrannus verticalis
    # Count: 1
    Date:
    Observer: Valentina Roumi
    Location: Walden Ponds Wildlife Habitat--Walden & Sawhill Ponds all together Boulder
  5. Northern Bobwhite Colinus virginianus
    # Count: 1
    Date:
    Observer: Tony Leukering
    Location: Prewitt Reservoir (Logan Co.) Logan
  6. Western Tanager Piranga ludoviciana
    # Count: 1
    Date:
    Observer: Curtis Burkhalter
    Location: Tanglewood Natural Area Larimer
  7. Greater Prairie-Chicken Tympanuchus cupido
    # Count: 3
    Date:
    Observer: Trey Rogers
    Location: 80755, Vernon US-CO 39.90047, -102.36332 Yuma
  8. Short-eared Owl Asio flammeus
    # Count: 1
    Date:
    Observer: Trey Rogers
    Location: 80758, Wray US-CO 39.91407, -102.30752 Yuma
  9. Black-throated Blue Warbler Setophaga caerulescens
    # Count: 1
    Date:
    Observer: Lori Zabel
    Location: CSU--Environmental Learning Center Larimer
  10. Cinnamon Teal Spatula cyanoptera
    # Count: 1
    Date:
    Observer: Molly Herrmann
    Location: Fountain Creek Regional Park El Paso
  11. Red-bellied Woodpecker Melanerpes carolinus
    # Count: 1
    Date:
    Observer: James Kachline
    Location: Tamarack Ranch SWA--385 Rd Logan
  12. Long-tailed Duck Clangula hyemalis
    # Count: 2
    Date:
    Observer: Cole Wild
    Location: Lake Loveland Larimer
  13. Ovenbird Seiurus aurocapilla
    # Count: 1
    Date:
    Observer: Evan Carlson
    Location: Roselawn Cemetery (Pueblo Co) Pueblo
  14. Sharp-tailed Grouse Tympanuchus phasianellus
    # Count: 22
    Date:
    Observer: Jeremiah Psiropoulos
    Location: Howe Ranch (restricted access) Routt
  15. Brewer's Sparrow Spizella breweri
    # Count: 1
    Date:
    Observer: David Fraide
    Location: Frank Varra Park, Broomfield US-CO 39.93616, -105.13468 Broomfield
  16. Williamson's Sapsucker Sphyrapicus thyroideus
    # Count: 1
    Date:
    Observer: Chris Monahan
    Location: Colorado College & Baca Campus Rd Saguache
  17. Common Yellowthroat Geothlypis trichas
    # Count: 1
    Date:
    Observer: Christian Nunes
    Location: Pella Crossing Open Space Boulder
  18. Summer Tanager Piranga rubra
    # Count: 1
    Date:
    Observer: Jerry Jacka
    Location: 815 38th St, Boulder US-CO 40.00224, -105.24585 Boulder
  19. Red-throated Loon Gavia stellata
    # Count: 1
    Date:
    Observer: Daniel Gelbart
    Location: Baseline Reservoir Boulder
  20. Savannah Sparrow Passerculus sandwichensis
    # Count: 1
    Date:
    Observer: Brandon K. Percival
    Location: Pueblo Reservoir Pueblo
  21. White-eyed Vireo Vireo griseus
    # Count: 1
    Date:
    Observer: Anne Craig
    Location: Bear Creek Greenbelt--S Kipling Pkwy to S Wadsworth Blvd Jefferson
  22. Trumpeter Swan Cygnus buccinator
    # Count: 5
    Date:
    Observer: Amy Hudechek
    Location: Highline Lake SP Mesa
  23. Pectoral Sandpiper Calidris melanotos
    # Count: 1
    Date:
    Observer: Tony Leukering
    Location: Sweitzer Lake SP Delta
  24. Blue-gray Gnatcatcher Polioptila caerulea
    # Count: 1
    Date:
    Observer: Tony Leukering
    Location: Sweitzer Lake SP Delta
  25. Band-tailed Pigeon Patagioenas fasciata
    # Count: 1
    Date:
    Observer: Jane Stulp
    Location: Farm Yard Prowers
  26. Western Screech-Owl Megascops kennicottii
    # Count: 1
    Date:
    Observer: Mike Henwood
    Location: Henwood yard--2668 Dahlia Court Mesa
  27. Semipalmated Plover Charadrius semipalmatus
    # Count: 1
    Date:
    Observer: Tony Leukering
    Location: Ridgway SP--Marina area Ouray
  28. Black Scoter Melanitta americana
    # Count: 1
    Date:
    Observer: Tony Leukering
    Location: Ridgway SP--Bay View Day Use Area Ouray
  29. Green-tailed Towhee Pipilo chlorurus
    # Count: 1
    Date:
    Observer: Tony Leukering
    Location: Ouray CR 5 Ouray
  30. Eurasian Wigeon Mareca penelope
    # Count: 1
    Date:
    Observer: Steve Dike
    Location: Sweitzer Lake SP Delta
  31. American Redstart Setophaga ruticilla
    # Count: 1
    Date:
    Observer: Kim Potter
    Location: Silt River Preserve Garfield
  32. Tree Swallow Tachycineta bicolor
    # Count: 1
    Date:
    Observer: Kim Potter
    Location: County Road 315, Silt US-CO 39.53016, -107.74025 Garfield
  33. White-tailed Ptarmigan Lagopus leucura
    # Count: 5
    Date:
    Observer: Ryan Dibala
    Location: Loveland Pass (Summit Co.) Summit
  34. Purple Finch Haemorhous purpureus
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Colorado Home La Plata
  35. Yellow-headed Blackbird Xanthocephalus xanthocephalus
    # Count: 2
    Date:
    Observer: Tyler Wilson
    Location: Thurston Reservoir Prowers
  36. Grasshopper Sparrow Ammodramus savannarum
    # Count: 1
    Date:
    Observer: Tanja Britton
    Location: Memorial Park & Prospect Lake El Paso
  37. Black Phoebe Sayornis nigricans
    # Count: 1
    Date:
    Observer: Nic Korte
    Location: Las Colonias Park Mesa
  38. Clay-colored Sparrow Spizella pallida
    # Count: 1
    Date:
    Observer: Kathy Mihm Dunning
    Location: Lake City - Elk Rd. Hinsdale
  39. White-faced Ibis Plegadis chihi
    # Count: 1
    Date:
    Observer: Ken Wat
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  40. Mexican Duck Anas diazi
    # Count: 1
    Date:
    Observer: T B
    Location: Cattail Crossing Pueblo
  41. Western Cattle-Egret Ardea ibis
    # Count: 1
    Date:
    Observer: Geree Rea
    Location: North Gateway Park (limited access during waterfowl season) Prowers
  42. Red-headed Woodpecker Melanerpes erythrocephalus
    # Count: 1
    Date:
    Observer: Scott Rashid
    Location: Rosy central Larimer
  43. Gray Catbird Dumetella carolinensis
    # Count: 1
    Date:
    Observer: Russell Clayshulte
    Location: 1529 South Telluride Street, Aurora, Colorado, US (39.69, -104.782) Arapahoe
  44. Black Rosy-Finch Leucosticte atrata
    # Count: 1
    Date:
    Observer: Sally Waterhouse
    Location: COCHETOPA HOME Chaffee
  45. Gray-crowned Rosy-Finch Leucosticte tephrocotis
    # Count: 2
    Date:
    Observer: Cameron Carver
    Location: The Goshawk (private, but open to public) Clear Creek
  46. Brown-capped Rosy-Finch Leucosticte australis
    # Count: 55
    Date:
    Observer: Cameron Carver
    Location: The Goshawk (private, but open to public) Clear Creek
  47. Tundra Swan Cygnus columbianus
    # Count: 5
    Date:
    Observer: Jedediah Smith
    Location: Rio Blanco SWA--Rio Blanco Lake Rio Blanco
  48. Ross's Goose Anser rossii
    # Count: 1
    Date:
    Observer: Geree Rea
    Location: North Gateway Park, Lamar US-CO 38.10372, -102.60707 Prowers
  49. Worm-eating Warbler Helmitheros vermivorum
    # Count: 1
    Date:
    Observer: Jason St. Pierre
    Location: Cottonwood Park (Mancos Dog Park) Montezuma
  50. American Golden-Plover Pluvialis dominica
    # Count: 1
    Date:
    Observer: Josh Bruening
    Location: Prewitt Reservoir SWA (Washington Co) Washington
  51. Baird's Sandpiper Calidris bairdii
    # Count: 6
    Date:
    Observer: Josh Bruening
    Location: Prewitt Reservoir SWA (Washington Co) Washington
  52. Peregrine Falcon Falco peregrinus
    # Count: 1
    Date:
    Observer: douglas diekman
    Location: Horsethief Canyon SWA Mesa
  53. Barrow's Goldeneye Bucephala islandica
    # Count: 2
    Date:
    Observer: Rob Copeland
    Location: Spring Park Reservoir Eagle
  54. Northern Mockingbird Mimus polyglottos
    # Count: 1
    Date:
    Observer: Geree Rea
    Location: Thurston Reservoir Prowers
  55. Yellow-throated Warbler Setophaga dominica
    # Count: 1
    Date:
    Observer: Pamela S
    Location: Jim Hamm Nature Area Boulder
  56. Greater Sage-Grouse Centrocercus urophasianus
    # Count: 23
    Date:
    Observer: Isaac Boardman
    Location: Coalmont Lek--ARRIVE IN DARK, STAY IN CAR, DO NOT DISTURB DISPLAYING BIRDS! Jackson
  57. Short-billed Gull Larus brachyrhynchus
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Horseshoe Reservoir Larimer
  58. Black-bellied Plover Pluvialis squatarola
    # Count: 1
    Date:
    Observer: Courtney Rella
    Location: Coal Creek Corridor Open Space Boulder
  59. Northern Parula Setophaga americana
    # Count: 1
    Date:
    Observer: Casey Setash
    Location: Private Residence, Loveland, Colorado, US (40.406, -105.151) Larimer
  60. Pine Warbler Setophaga pinus
    # Count: 1
    Date:
    Observer: John Drummond
    Location: Pueblo City Park Pueblo
  61. Eastern Phoebe Sayornis phoebe
    # Count: 1
    Date:
    Observer: Andrew McFadden
    Location: Morey Wildlife Reserve Larimer
  62. Surf Scoter Melanitta perspicillata
    # Count: 1
    Date:
    Observer: Norman Erthal
    Location: Antero Reservoir--southeast island Park
  63. Varied Thrush Ixoreus naevius
    # Count: 1
    Date:
    Observer: Sarah Leavesley
    Location: Marston Reservoir Complex--Marston Reservoir East End Denver
  64. Greater Roadrunner Geococcyx californianus
    # Count: 1
    Date:
    Observer: Marla Browne
    Location: Arkansas River Trail, Pueblo US-CO 38.25954, -104.61578 Pueblo
  65. Hooded Warbler Setophaga citrina
    # Count: 1
    Date:
    Observer: Joshua Smith
    Location: Morey Wildlife Reserve Larimer
  66. American Avocet Recurvirostra americana
    # Count: 7
    Date:
    Observer: Coen Dexter
    Location: Totten Reservoir Montezuma
  67. American Three-toed Woodpecker Picoides dorsalis
    # Count: 1
    Date:
    Observer: Kevin Brown
    Location: Rocky Mountain NP--Cub Lake and Trail Larimer
  68. White-winged Scoter Melanitta deglandi
    # Count: 3
    Date:
    Observer: Norman Erthal
    Location: Spinney Mountain SP Park
  69. Red-naped Sapsucker Sphyrapicus nuchalis
    # Count: 1
    Date:
    Observer: Don Marsh
    Location: Ridgway SP--Bay View Day Use Area Ouray
  70. Fox Sparrow Passerella iliaca
    # Count: 1
    Date:
    Observer: Mary Rushton
    Location: 6334 Colorado 89, Holly, Colorado, US (37.722, -102.128) Yard/Pasture Prowers
  71. Eastern Screech-Owl Megascops asio
    # Count: 1
    Date:
    Observer: William Prendki
    Location: Lee Martinez Park Larimer
  72. Dunlin Calidris alpina
    # Count: 4
    Date:
    Observer: Verlee Sanburg
    Location: Sweitzer Lake SP Delta
  73. Least Sandpiper Calidris minutilla
    # Count: 10
    Date:
    Observer: Verlee Sanburg
    Location: Sweitzer Lake SP Delta
  74. Sabine's Gull Xema sabini
    # Count: 1
    Date:
    Observer: Brandon K. Percival
    Location: Pueblo Reservoir Pueblo
  75. Wilson's Warbler Cardellina pusilla
    # Count: 1
    Date:
    Observer: Lori Shuler
    Location: Grand Junction Wildlife Area Mesa
  76. Black-crowned Night Heron Nycticorax nycticorax
    # Count: 1
    Date:
    Observer: Russell Clayshulte
    Location: Aurora Sports Park Arapahoe
  77. Northern Cardinal Cardinalis cardinalis
    # Count: 1
    Date:
    Observer: Casey Setash
    Location: Tamarack East Logan
  78. Lapland Longspur Calcarius lapponicus
    # Count: 4
    Date:
    Observer: Craig Larson
    Location: Karval Reservoir SWA Lincoln
  79. Chestnut-collared Longspur Calcarius ornatus
    # Count: 5
    Date:
    Observer: Craig Larson
    Location: Karval Reservoir SWA Lincoln
  80. Thick-billed Longspur Rhynchophanes mccownii
    # Count: 2
    Date:
    Observer: Craig Larson
    Location: Karval Reservoir SWA Lincoln
  81. American Barn Owl Tyto furcata
    # Count: 2
    Date:
    Observer: Kieran Schnitzspahn
    Location: 7585 Eggleston Dr, Boulder US-CO 39.99255, -105.17530 Boulder
  82. Northern Saw-whet Owl Aegolius acadicus
    # Count: 10
    Date:
    Observer: Kim Potter
    Location: T Rd, De Beque US-CO 39.30217, -108.14274 Mesa
  83. Vesper Sparrow Pooecetes gramineus
    # Count: 1
    Date:
    Observer: Matt Hofeditz
    Location: 12634 Knox Pt, Broomfield US-CO (39.9251,-105.0326) Broomfield
  84. American Goshawk Astur atricapillus
    # Count: 1
    Date:
    Observer: Kate Flynn
    Location: Boulder Mountain Park--Shanahan Mesa Boulder
  85. Scaled Quail Callipepla squamata
    # Count: 25
    Date:
    Observer: Linda Cunico
    Location: 414 S Hacienda Del Sol Dr, Pueblo West US-CO (38.3281,-104.7797) Pueblo
  86. Great Egret Ardea alba
    # Count: 1
    Date:
    Observer: Liz Zeek
    Location: Grand Junction Wildlife Area Mesa
  87. Orange-crowned Warbler Leiothlypis celata
    # Count: 1
    Date:
    Observer: Joshua Smith
    Location: Boyd Lake Larimer
  88. Dusky Grouse Dendragapus obscurus
    # Count: 1
    Date:
    Observer: Byron Greco
    Location: Grass Lake and Hinsdale Co. Rd. 987 Hinsdale
  89. Northern Pygmy-Owl Glaucidium gnoma
    # Count: 1
    Date:
    Observer: Chuck Aid
    Location: Falcon Ridge - Cub Creek Jefferson
  90. Winter Wren Troglodytes hiemalis
    # Count: 1
    Date:
    Observer: Joel Adams
    Location: Texas Creek ranch Fremont
  91. Lewis's Woodpecker Melanerpes lewis
    # Count: 6
    Date:
    Observer: Brad Steger
    Location: County Road 387, Wetmore US-CO 38.13904, -105.06787 Custer
  92. Greater Yellowlegs Tringa melanoleuca
    # Count: 1
    Date:
    Observer: Kathleen McGinley
    Location: Redlands Parkway Ponds Mesa
  93. Rose-breasted Grosbeak Pheucticus ludovicianus
    # Count: 1
    Date:
    Observer: Tyler Imfeld
    Location: Regis University Denver
  94. Greater Scaup Aythya marila
    # Count: 2
    Date:
    Observer: Cole Wild
    Location: Windsor Reservoir Weld
  95. Rock Wren Salpinctes obsoletus
    # Count: 1
    Date:
    Observer: Lander Bowser
    Location: Cherry Creek SP Arapahoe
  96. Snow Goose Anser caerulescens
    # Count: 750
    Date:
    Observer: Peter Burke
    Location: Road 17.25, Las Animas US-CO 38.09684, -103.09692 Bent
  97. Long-billed Dowitcher Limnodromus scolopaceus
    # Count: 3
    Date:
    Observer: Brad Steger
    Location: Pueblo West Gravel Pit Pueblo
  98. Sora Porzana carolina
    # Count: 1
    Date:
    Observer: Bill Harris
    Location: Marine Road Park Montrose
  99. Rufous-crowned Sparrow Aimophila ruficeps
    # Count: 1
    Date:
    Observer: Stanley Oswald
    Location: Vogel Canyon Otero
  100. Brown Thrasher Toxostoma rufum
    # Count: 1
    Date:
    Observer: Jane Stulp
    Location: Farm Yard Prowers
  101. Brown-headed Cowbird Molothrus ater
    # Count: 20
    Date:
    Observer: Jane Stulp
    Location: Farm Yard Prowers
  102. Sandhill Crane Antigone canadensis
    # Count: 2
    Date:
    Observer: Simon Tolzmann
    Location: Rams Village Apartments Larimer
  103. Brewer's Blackbird Euphagus cyanocephalus
    # Count: 1
    Date:
    Observer: Lori Shuler
    Location: Horsethief Canyon SWA Mesa
  104. Pine Grosbeak Pinicola enucleator
    # Count: 1
    Date:
    Observer: Nathaniel Stuart
    Location: Bakers Tank Trail--lower section Summit
  105. Yellow-bellied Sapsucker Sphyrapicus varius
    # Count: 2
    Date:
    Observer: Brad Steger
    Location: Pueblo City Park Pueblo
  106. Chipping Sparrow Spizella passerina
    # Count: 1
    Date:
    Observer: Brad Steger
    Location: Pueblo City Park Pueblo
  107. Bewick's Wren Thryomanes bewickii
    # Count: 1
    Date:
    Observer: mark yaeger
    Location: Runyon/Fountain Lakes SWA Pueblo
  108. American Dipper Cinclus mexicanus
    # Count: 1
    Date:
    Observer: Mike Clark
    Location: Bear Creek Lake Park Jefferson
  109. Rough-legged Hawk Buteo lagopus
    # Count: 1
    Date:
    Observer: Barbara Retzlaff
    Location: Boulder Reservoir complex--Coot Lake Boulder
  110. Greater White-fronted Goose Anser albifrons
    # Count: 1
    Date:
    Observer: Shari Lutz
    Location: Cherry Creek State Park, Greenwood Village US-CO 39.63522, -104.86149 Arapahoe
  111. Common Goldeneye Bucephala clangula
    # Count: 2
    Date:
    Observer: Trenton Voytko
    Location: South Platte River--Henderson Rd to E-470 Adams
  112. Wilson's Snipe Gallinago delicata
    # Count: 1
    Date:
    Observer: Trenton Voytko
    Location: South Platte River--Henderson Rd to E-470 Adams
  113. Osprey Pandion haliaetus
    # Count: 1
    Date:
    Observer: Shari Lutz
    Location: Cherry Creek State Park, Greenwood Village US-CO 39.63522, -104.86149 Arapahoe
  114. White-winged Dove Zenaida asiatica
    # Count: 4
    Date:
    Observer: Brad Steger
    Location: Comanche Rd, Pueblo US-CO Pueblo
  115. Juniper Titmouse Baeolophus ridgwayi
    # Count: 2
    Date:
    Observer: JoAnn Potter Riggle 🦤
    Location: Newman Ranch Eagle
  116. Evening Grosbeak Coccothraustes vespertinus
    # Count: 3
    Date:
    Observer: JoAnn Potter Riggle 🦤
    Location: Newman Ranch Eagle
  117. Gambel's Quail Callipepla gambelii
    # Count: 20
    Date:
    Observer: Bruce Ackerman
    Location: My house, 65311 Solar Heights Ct, Montrose, CO 81403 Montrose
  118. Northern Shrike Lanius borealis
    # Count: 1
    Date:
    Observer: DAVID HILL
    Location: Cherry Creek SP Arapahoe
  119. Common Grackle Quiscalus quiscula
    # Count: 15
    Date:
    Observer: DAVID HILL
    Location: Cherry Creek SP Arapahoe
  120. White-throated Sparrow Zonotrichia albicollis
    # Count: 2
    Date:
    Observer: Kelly Ducham
    Location: Bear Creek Lake Park Jefferson
  121. Hermit Thrush Catharus guttatus
    # Count: 1
    Date:
    Observer: Patricia Cullen
    Location: Izaak Walton Park Boulder
  122. Cassin's Finch Haemorhous cassinii
    # Count: 2
    Date:
    Observer: Laurel George
    Location: 34228 Mineral Lane, Pine, Colorado, US (39.433, -105.393) Jefferson
  123. Clark's Nutcracker Nucifraga columbiana
    # Count: 1
    Date:
    Observer: Luke Lowery
    Location: Harvard Lake’s Trail Chaffee
  124. Northern Pintail Anas acuta
    # Count: 2
    Date:
    Observer: Cole Sage
    Location: Cherry Creek SP Arapahoe
  125. Franklin's Gull Leucophaeus pipixcan
    # Count: 1
    Date:
    Observer: Cole Sage
    Location: Cherry Creek SP Arapahoe
  126. American Herring Gull Larus smithsonianus
    # Count: 16
    Date:
    Observer: Cole Sage
    Location: Cherry Creek SP Arapahoe
  127. Iceland Gull Larus glaucoides
    # Count: 1
    Date:
    Observer: Cole Sage
    Location: Cherry Creek SP Arapahoe
  128. Neotropic Cormorant Nannopterum brasilianum
    # Count: 1
    Date:
    Observer: Cole Sage
    Location: Cherry Creek SP Arapahoe
  129. Cooper's Hawk Astur cooperii
    # Count: 1
    Date:
    Observer: Cole Sage
    Location: Cherry Creek SP Arapahoe
  130. American Pipit Anthus rubescens
    # Count: 2
    Date:
    Observer: Cole Sage
    Location: Cherry Creek SP Arapahoe
  131. Harris's Sparrow Zonotrichia querula
    # Count: 1
    Date:
    Observer: Cole Sage
    Location: Cherry Creek SP Arapahoe
  132. Lincoln's Sparrow Melospiza lincolnii
    # Count: 1
    Date:
    Observer: Cole Sage
    Location: Cherry Creek SP Arapahoe
  133. Golden-crowned Kinglet Regulus satrapa
    # Count: 2
    Date:
    Observer: Mike Keenan
    Location: Monument Valley Park El Paso
  134. Great-tailed Grackle Quiscalus mexicanus
    # Count: 2
    Date:
    Observer: Pamela S
    Location: Jim Hamm Nature Area Boulder
  135. Canada Jay Perisoreus canadensis
    # Count: 1
    Date:
    Observer: Byron Greco
    Location: Forest Road 620, First Notch Road. Archuleta
  136. Red Crossbill Loxia curvirostra
    # Count: 9
    Date:
    Observer: Byron Greco
    Location: Forest Road 620, First Notch Road. Archuleta
  137. Redhead Aythya americana
    # Count: 1
    Date:
    Observer: George Ho
    Location: Rocky Mountain Arsenal NWR--Lake Ladora Adams
  138. Marsh Wren Cistothorus palustris
    # Count: 1
    Date:
    Observer: George Ho
    Location: Rocky Mountain Arsenal NWR--Lake Ladora Adams
  139. Wood Duck Aix sponsa
    # Count: 1
    Date:
    Observer: Mark Korducki
    Location: 2220 Santini Trail, Littleton US-CO 39.56287, -105.01482 Douglas
  140. Broad-tailed Hummingbird Selasphorus platycercus
    # Count: 1
    Date:
    Observer: Thomas Heinrich
    Location: 3rd & Forest Boulder
  141. Red-breasted Merganser Mergus serrator
    # Count: 2
    Date:
    Observer: Brandon K. Percival
    Location: Pueblo Reservoir Pueblo
  142. Black-legged Kittiwake Rissa tridactyla
    # Count: 1
    Date:
    Observer: Brandon K. Percival
    Location: Pueblo Reservoir Pueblo
  143. Bonaparte's Gull Chroicocephalus philadelphia
    # Count: 4
    Date:
    Observer: Brandon K. Percival
    Location: Pueblo Reservoir Pueblo
  144. Lesser Black-backed Gull Larus fuscus
    # Count: 2
    Date:
    Observer: Brandon K. Percival
    Location: Pueblo Reservoir Pueblo
  145. California Gull Larus californicus
    # Count: X
    Date:
    Observer: Brandon K. Percival
    Location: Pueblo Reservoir Pueblo
  146. Horned Grebe Podiceps auritus
    # Count: X
    Date:
    Observer: Brandon K. Percival
    Location: Pueblo Reservoir Pueblo
  147. Red-necked Grebe Podiceps grisegena
    # Count: 2
    Date:
    Observer: Brandon K. Percival
    Location: Pueblo Reservoir Pueblo
  148. Eared Grebe Podiceps nigricollis
    # Count: X
    Date:
    Observer: Brandon K. Percival
    Location: Pueblo Reservoir Pueblo
  149. Clark's Grebe Aechmophorus clarkii
    # Count: 1
    Date:
    Observer: Brandon K. Percival
    Location: Pueblo Reservoir Pueblo
  150. Pacific Loon Gavia pacifica
    # Count: 1
    Date:
    Observer: Brandon K. Percival
    Location: Pueblo Reservoir Pueblo
  151. Loggerhead Shrike Lanius ludovicianus
    # Count: 1
    Date:
    Observer: Brandon K. Percival
    Location: Pueblo Reservoir Pueblo
  152. Brown Creeper Certhia americana
    # Count: 4
    Date:
    Observer: Bob Fields
    Location: Well Gulch Nature Trail Larimer
  153. Canyon Wren Catherpes mexicanus
    # Count: 1
    Date:
    Observer: Bob Fields
    Location: Well Gulch Nature Trail Larimer
  154. Sage Thrasher Oreoscoptes montanus
    # Count: 1
    Date:
    Observer: Brandon K. Percival
    Location: Pueblo Reservoir Pueblo
  155. Yellow-rumped Warbler Setophaga coronata
    # Count: 1
    Date:
    Observer: Brandon K. Percival
    Location: Pueblo Reservoir Pueblo
  156. Say's Phoebe Sayornis saya
    # Count: 1
    Date:
    Observer: Jonathan Bookman
    Location: Home El Paso
  157. Ruby-crowned Kinglet Corthylio calendula
    # Count: 2
    Date:
    Observer: Jason St. Pierre
    Location: Cottonwood Park (Mancos Dog Park) Montezuma
  158. Swamp Sparrow Melospiza georgiana
    # Count: 1
    Date:
    Observer: Jason St. Pierre
    Location: Cottonwood Park (Mancos Dog Park) Montezuma
  159. Ferruginous Hawk Buteo regalis
    # Count: 1
    Date:
    Observer: Christian Nunes
    Location: Hidden Valley-OSMP Boulder
  160. Prairie Falcon Falco mexicanus
    # Count: 1
    Date:
    Observer: Christian Nunes
    Location: Hidden Valley-OSMP Boulder
  161. Eastern Bluebird Sialia sialis
    # Count: 1
    Date:
    Observer: Christian Nunes
    Location: Hidden Valley-OSMP Boulder
  162. Townsend's Solitaire Myadestes townsendi
    # Count: 2
    Date:
    Observer: Christian Nunes
    Location: Hidden Valley-OSMP Boulder
  163. American Tree Sparrow Spizelloides arborea
    # Count: 1
    Date:
    Observer: Christian Nunes
    Location: Hidden Valley-OSMP Boulder
  164. Hairy Woodpecker Dryobates villosus
    # Count: 1
    Date:
    Observer: peter weber
    Location: 4016 Otter Rd Larimer
  165. Canvasback Aythya valisineria
    # Count: 1
    Date:
    Observer: patricia kuzma sell
    Location: Wheat Ridge Greenbelt Jefferson
  166. Golden Eagle Aquila chrysaetos
    # Count: 2
    Date:
    Observer: Serena Pedane
    Location: Lory State Park Larimer
  167. Western Bluebird Sialia mexicana
    # Count: 2
    Date:
    Observer: Alan Versaw
    Location: Smith Creek Ponds El Paso
  168. Wild Turkey Meleagris gallopavo
    # Count: 12
    Date:
    Observer: Stanley Oswald
    Location: Higbee Cemetery and environs Otero
  169. Ladder-backed Woodpecker Dryobates scalaris
    # Count: 2
    Date:
    Observer: Stanley Oswald
    Location: Higbee Cemetery and environs Otero
  170. Chihuahuan Raven Corvus cryptoleucus
    # Count: 2
    Date:
    Observer: Stanley Oswald
    Location: Higbee Cemetery and environs Otero
  171. Curve-billed Thrasher Toxostoma curvirostre
    # Count: 1
    Date:
    Observer: Stanley Oswald
    Location: Higbee Cemetery and environs Otero
  172. Mountain Bluebird Sialia currucoides
    # Count: 6
    Date:
    Observer: Stanley Oswald
    Location: Higbee Cemetery and environs Otero
  173. Western Meadowlark Sturnella neglecta
    # Count: 2
    Date:
    Observer: Stanley Oswald
    Location: Higbee Cemetery and environs Otero
  174. Virginia Rail Rallus limicola
    # Count: 1
    Date:
    Observer: John Shenot
    Location: Red Fox Meadows Natural Area Larimer
  175. Red-breasted Nuthatch Sitta canadensis
    # Count: 1
    Date:
    Observer: John Shenot
    Location: Red Fox Meadows Natural Area Larimer
  176. Cedar Waxwing Bombycilla cedrorum
    # Count: 11
    Date:
    Observer: John Shenot
    Location: Red Fox Meadows Natural Area Larimer
  177. Blue-winged Teal Spatula discors
    # Count: 2
    Date:
    Observer: Courtney Rella
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  178. Green-winged Teal Anas crecca
    # Count: 2
    Date:
    Observer: Courtney Rella
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  179. Hooded Merganser Lophodytes cucullatus
    # Count: 8
    Date:
    Observer: Mark H
    Location: Antero Reservoir--southeast island Park
  180. Common Merganser Mergus merganser
    # Count: 1
    Date:
    Observer: Carly Crow
    Location: Waneka Lake/Greenlee Preserve--Waneka Lake only Boulder
  181. Spotted Sandpiper Actitis macularius
    # Count: 1
    Date:
    Observer: Courtney Rella
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  182. Double-crested Cormorant Nannopterum auritum
    # Count: 9
    Date:
    Observer: Courtney Rella
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  183. Northern Harrier Circus hudsonius
    # Count: 1
    Date:
    Observer: Mark H
    Location: Antero Reservoir--southeast island Park
  184. Canyon Towhee Melozone fusca
    # Count: 1
    Date:
    Observer: Marty Wolf
    Location: CarlsonWolf backyard in Mntn.Shadows El Paso
  185. Pine Siskin Spinus pinus
    # Count: 1
    Date:
    Observer: Chris Genge
    Location: South Republican SWA--Wagon Wheel Campground area Yuma
  186. Pygmy Nuthatch Sitta pygmaea
    # Count: 1
    Date:
    Observer: Joan Grant
    Location: Backyard El Paso
  187. Downy Woodpecker Dryobates pubescens
    # Count: 1
    Date:
    Observer: Patrick Morgan
    Location: Boulder County Open Space and Transportation Center (OSTC) Boulder
  188. Common Raven Corvus corax
    # Count: 1
    Date:
    Observer: Dale Pate
    Location: Van Gordon St. Yard Jefferson
  189. Lesser Goldfinch Spinus psaltria
    # Count: 1
    Date:
    Observer: Dale Pate
    Location: Van Gordon St. Yard Jefferson
  190. Ring-necked Duck Aythya collaris
    # Count: 15
    Date:
    Observer: Jason Cole
    Location: Plaster Reservoir Broomfield
  191. Lesser Scaup Aythya affinis
    # Count: 3
    Date:
    Observer: Jason Cole
    Location: Plaster Reservoir Broomfield
  192. Ruddy Duck Oxyura jamaicensis
    # Count: 1
    Date:
    Observer: Jason Cole
    Location: Plaster Reservoir Broomfield
  193. Rock Pigeon Columba livia
    # Count: 7
    Date:
    Observer: Jason Cole
    Location: Plaster Reservoir Broomfield
  194. Mourning Dove Zenaida macroura
    # Count: 1
    Date:
    Observer: Jason Cole
    Location: Plaster Reservoir Broomfield
  195. Sharp-shinned Hawk Accipiter striatus
    # Count: 1
    Date:
    Observer: Jason Cole
    Location: Plaster Reservoir Broomfield
  196. Northern Flicker Colaptes auratus
    # Count: 1
    Date:
    Observer: Lisa Ferreira
    Location: 3445 West 34th Avenue, Denver, Colorado, US (39.765, -105.033) Denver
  197. American Kestrel Falco sparverius
    # Count: 1
    Date:
    Observer: Jason Cole
    Location: Plaster Reservoir Broomfield
  198. Steller's Jay Cyanocitta stelleri
    # Count: 2
    Date:
    Observer: Deb G
    Location: Home El Paso
  199. Blue Jay Cyanocitta cristata
    # Count: 4
    Date:
    Observer: Deb G
    Location: Home El Paso
  200. Black-capped Chickadee Poecile atricapillus
    # Count: 4
    Date:
    Observer: Lisa Ferreira
    Location: 3445 West 34th Avenue, Denver, Colorado, US (39.765, -105.033) Denver
  201. Mountain Chickadee Poecile gambeli
    # Count: 1
    Date:
    Observer: Deb G
    Location: Home El Paso
  202. Horned Lark Eremophila alpestris
    # Count: 1
    Date:
    Observer: Jason Cole
    Location: Plaster Reservoir Broomfield
  203. Bushtit Psaltriparus minimus
    # Count: 3
    Date:
    Observer: Jason Cole
    Location: Plaster Reservoir Broomfield
  204. White-breasted Nuthatch Sitta carolinensis
    # Count: 1
    Date:
    Observer: Lisa Ferreira
    Location: 3445 West 34th Avenue, Denver, Colorado, US (39.765, -105.033) Denver
  205. House Sparrow Passer domesticus
    # Count: X
    Date:
    Observer: Lisa Ferreira
    Location: 3445 West 34th Avenue, Denver, Colorado, US (39.765, -105.033) Denver
  206. House Finch Haemorhous mexicanus
    # Count: X
    Date:
    Observer: Lisa Ferreira
    Location: 3445 West 34th Avenue, Denver, Colorado, US (39.765, -105.033) Denver
  207. American Goldfinch Spinus tristis
    # Count: 10
    Date:
    Observer: Jason Cole
    Location: Plaster Reservoir Broomfield
  208. Nashville Warbler Leiothlypis ruficapilla
    # Count: 1
    Date:
    Observer: Deb G
    Location: Home El Paso
  209. Pinyon Jay Gymnorhinus cyanocephalus
    # Count: X
    Date:
    Observer: Mark Otto
    Location: 103 Cholla Cir, Florence US-CO 38.34254, -105.12408 Fremont
  210. Woodhouse's Scrub-Jay Aphelocoma woodhouseii
    # Count: 1
    Date:
    Observer: Mark Otto
    Location: 103 Cholla Cir, Florence US-CO 38.34254, -105.12408 Fremont
  211. American Robin Turdus migratorius
    # Count: 2
    Date:
    Observer: Mark Otto
    Location: 103 Cholla Cir, Florence US-CO 38.34254, -105.12408 Fremont
  212. Dark-eyed Junco Junco hyemalis
    # Count: 5
    Date:
    Observer: Mark Otto
    Location: 103 Cholla Cir, Florence US-CO 38.34254, -105.12408 Fremont
  213. White-crowned Sparrow Zonotrichia leucophrys
    # Count: 1
    Date:
    Observer: Anne Craig
    Location: Rampart Station Subdivision Jefferson
  214. Spotted Towhee Pipilo maculatus
    # Count: 1
    Date:
    Observer: Anne Craig
    Location: Rampart Station Subdivision Jefferson
  215. Cackling Goose Branta hutchinsii
    # Count: 25
    Date:
    Observer: Cynthia Madsen
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  216. Canada Goose Branta canadensis
    # Count: 80
    Date:
    Observer: Cynthia Madsen
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  217. Northern Shoveler Spatula clypeata
    # Count: 10
    Date:
    Observer: Cynthia Madsen
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  218. Gadwall Mareca strepera
    # Count: 39
    Date:
    Observer: Cynthia Madsen
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  219. American Wigeon Mareca americana
    # Count: 5
    Date:
    Observer: Cynthia Madsen
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  220. Mallard Anas platyrhynchos
    # Count: 86
    Date:
    Observer: Cynthia Madsen
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  221. Bufflehead Bucephala albeola
    # Count: 7
    Date:
    Observer: Cynthia Madsen
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  222. American Coot Fulica americana
    # Count: 300
    Date:
    Observer: Cynthia Madsen
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  223. Killdeer Charadrius vociferus
    # Count: 4
    Date:
    Observer: Cynthia Madsen
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  224. Ring-billed Gull Larus delawarensis
    # Count: 8000
    Date:
    Observer: Cynthia Madsen
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  225. Pied-billed Grebe Podilymbus podiceps
    # Count: 2
    Date:
    Observer: Cynthia Madsen
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  226. Western Grebe Aechmophorus occidentalis
    # Count: 4
    Date:
    Observer: Cynthia Madsen
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  227. Common Loon Gavia immer
    # Count: 1
    Date:
    Observer: Cynthia Madsen
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  228. Great Blue Heron Ardea herodias
    # Count: 5
    Date:
    Observer: Cynthia Madsen
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  229. American White Pelican Pelecanus erythrorhynchos
    # Count: 20
    Date:
    Observer: Cynthia Madsen
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  230. Bald Eagle Haliaeetus leucocephalus
    # Count: 1
    Date:
    Observer: Cynthia Madsen
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  231. Red-tailed Hawk Buteo jamaicensis
    # Count: 1
    Date:
    Observer: Cynthia Madsen
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  232. Belted Kingfisher Megaceryle alcyon
    # Count: 1
    Date:
    Observer: Cynthia Madsen
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  233. Merlin Falco columbarius
    # Count: 1
    Date:
    Observer: Cynthia Madsen
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  234. Black-billed Magpie Pica hudsonia
    # Count: 6
    Date:
    Observer: Cynthia Madsen
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  235. American Crow Corvus brachyrhynchos
    # Count: 4
    Date:
    Observer: Cynthia Madsen
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  236. European Starling Sturnus vulgaris
    # Count: 8
    Date:
    Observer: Cynthia Madsen
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  237. Song Sparrow Melospiza melodia
    # Count: 1
    Date:
    Observer: Cynthia Madsen
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  238. Red-winged Blackbird Agelaius phoeniceus
    # Count: 100
    Date:
    Observer: Cynthia Madsen
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  239. Rusty Blackbird Euphagus carolinus
    # Count: 1
    Date:
    Observer: Cynthia Madsen
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  240. Eurasian Collared-Dove Streptopelia decaocto
    # Count: 1
    Date:
    Observer: Jim Merritt
    Location: Red Rock Canyon Open Space El Paso
  241. Great Horned Owl Bubo virginianus
    # Count: 1
    Date:
    Observer: Bob Fields
    Location: Udall Natural Area Larimer
  242. Gunnison Sage-Grouse Centrocercus minimus
    # Count: 1
  243. Long-eared Owl Asio otus
    # Count: 1

Exotic: Provisional (1)

  1. Ring-necked Pheasant Phasianus colchicus
    # Count: 2
    Date:
    Observer: Cole Sage
    Location: Cherry Creek SP Arapahoe

Exotic: Escapee (3)

  1. Helmeted Guineafowl Numida meleagris
    # Count: 12
    Date:
    Observer: Mel Sok
    Location: 6999 Jay Rd, Boulder US-CO 40.05139, -105.18983 Boulder
  2. Muscovy Duck Cairina moschata
    # Count: 1
    Date:
    Observer: Tanja Britton
    Location: Memorial Park & Prospect Lake El Paso
  3. Graylag Goose Anser anser
    # Count: 1
    Date:
    Observer: Matthew Fast
    Location: Denver City Park--Duck Lake Denver

Hybrids (10)

  1. Snow/Ross's x Cackling/Canada Goose (hybrid) Anser caerulescens/rossii x Branta hutchinsii/canadensis
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Windsor Reservoir Weld
  2. Mallard x Mexican Duck (hybrid) Anas platyrhynchos x diazi
    # Count: 1
    Date:
    Observer: Joshua Smith
    Location: Long View Farm Open Space (view from road only) Larimer
  3. Mallard x Northern Pintail (hybrid) Anas platyrhynchos x acuta
    # Count: 1
    Date:
    Observer: Joshua Smith
    Location: Long View Farm Open Space (view from road only) Larimer
  4. Western x Clark's Grebe (hybrid) Aechmophorus occidentalis x clarkii
    # Count: 1
    Date:
    Observer: Mike Thompson
    Location: Lake Nighthorse La Plata
  5. Snow x Cackling Goose (hybrid) Anser caerulescens x Branta hutchinsii
    # Count: 2
    Date:
    Observer: Kristy Dhaliwal
    Location: Lagerman Agricultural Preserve--Lagerman Reservoir Boulder
  6. Black-capped x Mountain Chickadee (hybrid) Poecile atricapillus x gambeli
    # Count: 1
    Date:
    Observer: Meg Reck
    Location: My backyard in Aurora Arapahoe
  7. Greater White-fronted x Canada Goose (hybrid) Anser albifrons x Branta canadensis
    # Count: 1
    Date:
    Observer: Archer Silverman
    Location: City Park Golf Course (restricted access) Denver
  8. Graylag x Canada Goose (hybrid) Anser anser x Branta canadensis
    # Count: 1
    Date:
    Observer: Jeremy Nichols
    Location: Belmar Park Jefferson
  9. Graylag x Swan Goose (hybrid) Anser anser x cygnoides
    # Count: 1
    Date:
    Observer: Archer Silverman
    Location: Denver City Park Denver
  10. American Wigeon x Mallard (hybrid) Mareca americana x Anas platyrhynchos
    # Count: 1
    Date:
    Observer: Isabelle Busch
    Location: North Shields Pond Natural Area Larimer

Additional Taxa (74)

  1. wren sp. Troglodytidae sp.
    # Count: 1
    Date:
    Observer: Monday Birders
    Location: Fountain Creek Regional Park El Paso
  2. Rusty/Brewer's Blackbird Euphagus carolinus/cyanocephalus
    # Count: 1
    Date:
    Observer: Jeff Percell
    Location: Thomas Reservoir Boulder
  3. phoebe sp. Sayornis sp.
    # Count: 1
    Date:
    Observer: Nick Komar
    Location: CSU--Environmental Learning Center Larimer
  4. jay sp. Corvidae sp. (jay sp.)
    # Count: 1
    Date:
    Observer: William Stevens
    Location: Golden Gate SP--Kriley Pond Gilpin
  5. Red/Cassia Crossbill Loxia curvirostra/sinesciuris
    # Count: 1
    Date:
    Observer: Luke Pheneger
    Location: Texas Drive Clear Creek
  6. Buteo/eagle sp. Buteo/eagle sp.
    # Count: 1
    Date:
    Observer: Rolf Hertenstein
    Location: Lyons Cemetery Boulder
  7. swallow sp. Hirundinidae sp.
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Black Bess Day Use Area Pitkin
  8. Common/Yellow-billed Loon Gavia immer/adamsii
    # Count: 1
    Date:
    Observer: Ted Floyd
    Location: Baseline Reservoir Boulder
  9. owl sp. Strigiformes sp.
    # Count: 1
    Date:
    Observer: Christopher Fimbel
    Location: Wheat Ridge Greenbelt Jefferson
  10. Zonotrichia sp. Zonotrichia sp.
    # Count: 1
    Date:
    Observer: Tyler Wilson
    Location: Frank Varra Park Broomfield
  11. new world flycatcher sp. Tyrannidae sp.
    # Count: 1
    Date:
    Observer: Glenn Pearson
    Location: Highline Lake SP Mesa
  12. Ruby-crowned/Golden-crowned Kinglet Corthylio calendula/Regulus satrapa
    # Count: 1
    Date:
    Observer: Frank Coons
    Location: Prospect Park, Wheat Ridge US-CO (39.7754,-105.1252) Jefferson
  13. shorebird sp. Charadriiformes sp. (shorebird sp.)
    # Count: 1
    Date:
    Observer: Robert King
    Location: McIntosh Lake Boulder
  14. jaeger sp. Stercorarius sp. (jaeger sp.)
    # Count: 1
    Date:
    Observer: Chris Knight
    Location: Lake Pueblo SP--northwest side Pueblo
  15. swan sp. Cygnus sp.
    # Count: X
    Date:
    Observer: Amy Hudechek
    Location: Confluence Park (Delta) Delta
  16. thrush sp. Turdidae sp.
    # Count: 1
    Date:
    Observer: Janet Gallenstein
    Location: Ridgway SP--Visitor Center & campgrounds Ouray
  17. Trumpeter/Tundra Swan Cygnus buccinator/columbianus
    # Count: 4
    Date:
    Observer: Tony Leukering
    Location: Ouray (town) Ouray
  18. sapsucker sp. Sphyrapicus sp.
    # Count: 1
    Date:
    Observer: Henry Holden
    Location: Ft. Collins City Park and Sheldon Lake Larimer
  19. Snow/Ross's Goose Anser caerulescens/rossii
    # Count: 1
    Date:
    Observer: Christopher Fimbel
    Location: Clear Creek Valley Park Adams
  20. rosy-finch sp. Leucosticte sp.
    # Count: 7
    Date:
    Observer: Josie Kopchak
    Location: Home El Paso
  21. American Herring/Iceland Gull Larus smithsonianus/glaucoides
    # Count: 2
    Date:
    Observer: Eric Konkol
    Location: Horseshoe Reservoir Larimer
  22. raven sp. Corvus sp. (raven sp.)
    # Count: 5
    Date:
    Observer: Tyler Wilson
    Location: Thurston Reservoir Prowers
  23. large shorebird sp. Charadriiformes sp. (large shorebird sp.)
    # Count: 1
    Date:
    Observer: Frank Coons
    Location: Clear Creek Trail--Golden to I-70 Jefferson
  24. diurnal raptor sp. Accipitriformes/Falconiformes sp.
    # Count: 1
    Date:
    Observer: Jason Cole
    Location: Plaster Reservoir Broomfield
  25. finch sp. Fringillidae sp.
    # Count: 20
    Date:
    Observer: Ethan Cleveland
    Location: Cherry Creek SP Arapahoe
  26. merganser sp. Mergellus/Lophodytes/Mergus sp.
    # Count: 7
    Date:
    Observer: Stephen Price
    Location: McIntosh Lake Boulder
  27. bird sp. Aves sp.
    # Count: 300
    Date:
    Observer: Stephen Price
    Location: McIntosh Lake Boulder
  28. Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceus
    # Count: 1
    Date:
    Observer: Michael Britten
    Location: Lagerman Agricultural Preserve--Lagerman Reservoir Boulder
  29. small falcon sp. Falco sp. (small falcon sp.)
    # Count: 1
    Date:
    Observer: Michael Britten
    Location: Lagerman Agricultural Preserve--Lagerman Reservoir Boulder
  30. Aythya sp. Aythya sp.
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: East Brush Creek Nature Trail and Ponds Pitkin
  31. nuthatch sp. Sitta sp.
    # Count: 1
    Date:
    Observer: Ted Floyd
    Location: Waneka Lake/Greenlee Preserve Boulder
  32. grebe sp. Podicipedidae sp.
    # Count: 30
    Date:
    Observer: Bradley Richardson
    Location: Pueblo Reservoir Pueblo
  33. new world warbler sp. Parulidae sp.
    # Count: 1
    Date:
    Observer: Jedediah Smith
    Location: McInnis Canyon NCA--Devil's Canyon Trails Mesa
  34. Spizella sp./American Tree Sparrow Spizella/Spizelloides sp.
    # Count: 3
    Date:
    Observer: Frank and Nancy Hatch
    Location: High Line Canal Trail--Fairmount Cemetery to S Havana St Denver
  35. Red/Red-necked Phalarope Phalaropus fulicarius/lobatus
    # Count: 1
    Date:
    Observer: Claire Labuda
    Location: Rawhide Energy Station/Hamilton Reservoir Larimer
  36. falcon sp. Falco sp.
    # Count: 1
    Date:
    Observer: Scott Brown
    Location: Lagerman Agricultural Preserve--Lagerman Reservoir Boulder
  37. Accipitrine hawk sp. (former Accipiter sp.) Aerospiza/Tachyspiza/Accipiter/Astur sp.
    # Count: 1
    Date:
    Observer: Felice Lyons
    Location: Castlewood Canyon SP Douglas
  38. Common/Red-breasted Merganser Mergus merganser/serrator
    # Count: 30
    Date:
    Observer: Rob Cassady
    Location: Valmont Reservoir Complex Boulder
  39. blackbird sp. Icteridae sp.
    # Count: 1
    Date:
    Observer: Kathy Mihm Dunning
    Location: Twin Lakes - Moache Lake
  40. Cackling/Canada Goose Branta hutchinsii/canadensis
    # Count: 11
    Date:
    Observer: Scott Dieni
    Location: Welchester Tree Grant Park Jefferson
  41. loon sp. Gavia sp.
    # Count: 1
    Date:
    Observer: Jedediah Smith
    Location: Highline Lake SP Mesa
  42. Common/Barrow's Goldeneye Bucephala clangula/islandica
    # Count: 4
    Date:
    Observer: Robert Brooks
    Location: Cottonwood Park Jefferson
  43. peep sp. Calidris sp. (peep sp.)
    # Count: 1
    Date:
    Observer: Julia Auckland
    Location: Union Reservoir Weld
  44. Loggerhead/Northern Shrike Lanius ludovicianus/borealis
    # Count: 1
    Date:
    Observer: Linda Ek
    Location: John Martin Reservoir Bent
  45. Spotted/Eastern Towhee (Rufous-sided Towhee) Pipilo maculatus/erythrophthalmus
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Coal Creek Corridor Open Space Boulder
  46. Greater/Lesser Scaup Aythya marila/affinis
    # Count: 1
    Date:
    Observer: Linda Ek
    Location: Lake Hasty (lake and campground) Bent
  47. teal sp. Anatidae sp. (teal sp.)
    # Count: 10
    Date:
    Observer: Rosanne Juergens
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  48. woodpecker sp. Picidae sp.
    # Count: 1
    Date:
    Observer: Spencer Hurt
    Location: Rocky Mountain NP--Colorado River Trail Grand
  49. Buteo sp. Buteo sp.
    # Count: 1
    Date:
    Observer: Sabrina Hepburn
    Location: SH-71, Rush US-CO 38.72652, -103.71913 Lincoln
  50. Black-capped/Mountain Chickadee Poecile atricapillus/gambeli
    # Count: 1
    Date:
    Observer: Nolan Boronka
    Location: Monument--Sixpenny Lane El Paso
  51. crow/raven sp. Corvus sp.
    # Count: 1
    Date:
    Observer: Ryan Morrissey
    Location: Lowry Park area--Aurora-Kelley Road Reservoir & Great Lawn Park Denver
  52. Downy/Hairy Woodpecker Dryobates pubescens/villosus
    # Count: 1
    Date:
    Observer: Robert Bauch
    Location: 280 Crystal Park Rd, Manitou Springs US-CO 38.84335, -104.90279 El Paso
  53. Spizella sp. Spizella sp.
    # Count: 1
    Date:
    Observer: Julia Gwinn
    Location: South Platte Park--C470 area Arapahoe
  54. goose sp. Anatidae (goose sp.)
    # Count: 8
    Date:
    Observer: Thomas Heinrich
    Location: 3rd & Forest Boulder
  55. Horned/Eared Grebe Podiceps auritus/nigricollis
    # Count: 3
    Date:
    Observer: Ken Wat
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  56. Pacific/Winter Wren Troglodytes pacificus/hiemalis
    # Count: 1
    Date:
    Observer: Casey Setash
    Location: Tamarack East Logan
  57. pigeon/dove sp. Columbidae sp.
    # Count: 1
    Date:
    Observer: Christopher Fimbel
    Location: Rocky Mountain Lake Park Denver
  58. heron sp. Ardeidae sp.
    # Count: 8
    Date:
    Observer: matt newport
    Location: Cherry Creek SP Arapahoe
  59. Mallard/Mexican Duck Anas platyrhynchos/diazi
    # Count: 2
    Date:
    Observer: Sabine Baring-Gould
    Location: University of Colorado Boulder--Main Campus Boulder
  60. dabbling duck sp. Anatidae sp. (dabbling duck sp.)
    # Count: 20
    Date:
    Observer: Jedediah Smith
    Location: Rio Blanco SWA--Rio Blanco Lake Rio Blanco
  61. Golden/Bald Eagle Aquila chrysaetos/Haliaeetus leucocephalus
    # Count: 1
    Date:
    Observer: Macey Weaver
    Location: Colorado State University, Fort Collins US-CO 40.57432, -105.08414 Larimer
  62. Yellow-bellied/Red-naped Sapsucker Sphyrapicus varius/nuchalis
    # Count: 1
    Date:
    Observer: Mary Keleher
    Location: Great Sand Dunes NP (Alamosa Co.) Alamosa
  63. large falcon sp. Falco sp. (large falcon sp.)
    # Count: 1
    Date:
    Observer: Frank Coons
    Location: Walden Ponds Wildlife Habitat--Walden & Sawhill Ponds all together Boulder
  64. Sharp-shinned/Cooper's Hawk Accipiter striatus/Astur cooperii
    # Count: 1
    Date:
    Observer: Gerald "Jerry" Baines
    Location: Crown Hill Regional Park Jefferson
  65. Domestic goose sp. (Domestic type) Anser sp. (Domestic type)
    # Count: 1
    Date:
    Observer: Shari Lutz
    Location: Cherry Creek State Park, Greenwood Village US-CO 39.63522, -104.86149 Arapahoe
  66. passerine sp. Passeriformes sp.
    # Count: 33
    Date:
    Observer: DAVID HILL
    Location: Cherry Creek SP Arapahoe
  67. duck sp. Anatidae (duck sp.)
    # Count: 1
    Date:
    Observer: Kelly Ducham
    Location: Bear Creek Lake Park Jefferson
  68. Larus sp. Larus sp.
    # Count: 6
    Date:
    Observer: Andrew McFadden
    Location: Boyd Lake Larimer
  69. Western/Clark's Grebe Aechmophorus occidentalis/clarkii
    # Count: 20
    Date:
    Observer: Andrew McFadden
    Location: Boyd Lake Larimer
  70. hawk sp. Accipitridae sp. (hawk sp.)
    # Count: 1
    Date:
    Observer: Ethan Cleveland
    Location: Koepke Road (Woodis Road to Elbert CO line) Arapahoe
  71. longspur sp. Calcarius/Rhynchophanes sp.
    # Count: 1
    Date:
    Observer: Ethan Cleveland
    Location: Koepke Road (Woodis Road to Elbert CO line) Arapahoe
  72. bluebird sp. Sialia sp.
    # Count: 2
    Date:
    Observer: Alan Versaw
    Location: Smith Creek Ponds El Paso
  73. gull sp. Larinae sp.
    # Count: 1
    Date:
    Observer: John Shenot
    Location: Red Fox Meadows Natural Area Larimer
  74. new world sparrow sp. Passerellidae sp.
    # Count: 1
    Date:
    Observer: Jason Cole
    Location: Plaster Reservoir Broomfield