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Bird List

Updated ~2 hours ago
518 All Years 322 This Year 2025 300 This Month Apr 2025
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  1. Species Name
    Count
    Date
    Observer
    Location

Native and Naturalized (299)

  1. White-eyed Vireo Vireo griseus
    # Count: 1
    Date:
    Observer: Bruce Dunbar
    Location: Sondermann Park El Paso
  2. Rose-breasted Grosbeak Pheucticus ludovicianus
    # Count: 1
    Date:
    Observer: Brian Genge
    Location: Two Buttes SWA--below dam Baca
  3. Cassin's Vireo Vireo cassinii
    # Count: 1
    Date:
    Observer: Peter Ruprecht
    Location: East Boulder Community Park Boulder
  4. Wood Thrush Hylocichla mustelina
    # Count: 1
    Date:
    Observer: Brian Devine
    Location: Lake Hasty (lake and campground) Bent
  5. Green Heron Butorides virescens
    # Count: 1
    Date:
    Observer: Simon Tolzmann
    Location: Boyd Lake Larimer
  6. Hudsonian Godwit Limosa haemastica
    # Count: 1
    Date:
    Observer: Shay Howlin
    Location: Playa at Morgan CR JJ & Hwy 71 Morgan
  7. Blackpoll Warbler Setophaga striata
    # Count: 1
    Date:
    Observer: Garrett Carlson
    Location: Jean K Tool SWA Morgan
  8. Bullock's Oriole Icterus bullockii
    # Count: 2
    Date:
    Observer: Jim Lind
    Location: Carrizo Canyon Picnic Area Baca
  9. Indigo Bunting Passerina cyanea
    # Count: 1
    Date:
    Observer: Todd Deininger
    Location: Eads (town) Kiowa
  10. Clay-colored Sparrow Spizella pallida
    # Count: 1
    Date:
    Observer: Kevin Williams
    Location: South Platte Park Arapahoe
  11. Nashville Warbler Leiothlypis ruficapilla
    # Count: 1
    Date:
    Observer: Matthew Hazelgren
    Location: Wheat Ridge Greenbelt Jefferson
  12. American Redstart Setophaga ruticilla
    # Count: 1
    Date:
    Observer: Audrey Curtis
    Location: Imperial Cemetery Pueblo
  13. Plumbeous Vireo Vireo plumbeus
    # Count: 1
    Date:
    Observer: Brett Walker
    Location: 452 Tara Drive, Fruita, Colorado, US (39.165, -108.747) Mesa
  14. Cassin's Kingbird Tyrannus vociferans
    # Count: 1
    Date:
    Observer: Cathy Sheeter
    Location: Trinidad Lake SP Las Animas
  15. Yellow-throated Vireo Vireo flavifrons
    # Count: 1
    Date:
    Observer: John Bruder
    Location: Mallard Pond El Paso
  16. Gray Vireo Vireo vicinior
    # Count: 1
    Date:
    Observer: douglas diekman
    Location: Devils Flume Connector Trail, Fruita US-CO 39.14862, -108.77391 Mesa
  17. Piping Plover Charadrius melodus
    # Count: 1
    Date:
    Observer: Nick Komar
    Location: Cherry Creek SP Arapahoe
  18. Black-and-white Warbler Mniotilta varia
    # Count: 1
    Date:
    Observer: Danni Moran
    Location: Lake Pueblo SP--Rock Canyon area (below dam, north of river) Pueblo
  19. Lazuli Bunting Passerina amoena
    # Count: 2
    Date:
    Observer: Robert Doster
    Location: Tucker Gulch Jefferson
  20. Least Flycatcher Empidonax minimus
    # Count: 1
    Date:
    Observer: Dale Pate
    Location: Van Gordon St. Yard Jefferson
  21. Eastern Kingbird Tyrannus tyrannus
    # Count: 1
    Date:
    Observer: Annette Kalinoski
    Location: Lake Hasty (lake and campground) Bent
  22. Red-necked Grebe Podiceps grisegena
    # Count: 2
    Date:
    Observer: Mike Thompson
    Location: Center of McPhee Montezuma
  23. Ash-throated Flycatcher Myiarchus cinerascens
    # Count: 1
    Date:
    Observer: Katherine Holland
    Location: Cottonwood Canyon (Las Animas Co.; campground and upstream to W; ~0.52 mi. on road in county) Las Animas
  24. Black-headed Grosbeak Pheucticus melanocephalus
    # Count: 1
    Date:
    Observer: Diane Trappett
    Location: US-CO-Grand Junction-Trappett-Yard Mesa
  25. American Bittern Botaurus lentiginosus
    # Count: 1
    Date:
    Observer: Carolyn Beach
    Location: Walden Ponds Wildlife Habitat--Walden & Sawhill Ponds all together Boulder
  26. Chimney Swift Chaetura pelagica
    # Count: 1
    Date:
    Observer: Darth Aves
    Location: La Junta (town) Otero
  27. Cassin's Sparrow Peucaea cassinii
    # Count: 1
    Date:
    Observer: Rebecca Laroche
    Location: 20001–22159 County Ln 20, Ordway US-CO 38.42264, -103.69547 Crowley
  28. Grace's Warbler Setophaga graciae
    # Count: 1
    Date:
    Observer: Eric Edgar
    Location: Junction Creek Rd overlooking Perins Pk La Plata
  29. Yellow Warbler Setophaga petechia
    # Count: 1
    Date:
    Observer: Christine Alexander
    Location: Highline Lake SP Mesa
  30. Whimbrel Numenius phaeopus
    # Count: 1
    Date:
    Observer: Carly Crow
    Location: Neenoshe Reservoir Kiowa
  31. Sanderling Calidris alba
    # Count: 3
    Date:
    Observer: Carly Crow
    Location: Neenoshe Reservoir Kiowa
  32. Scissor-tailed Flycatcher Tyrannus forficatus
    # Count: 1
    Date:
    Observer: Brett Walker
    Location: Island, Horsethief SWA, Fruita, CO Mesa
  33. Summer Tanager Piranga rubra
    # Count: 1
    Date:
    Observer: Sandy Beranich
    Location: Taviwach Park Montrose
  34. Pectoral Sandpiper Calidris melanotos
    # Count: 1
    Date:
    Observer: Harold Eyster
    Location: Lagerman Agricultural Preserve--Lagerman Reservoir Boulder
  35. Acorn Woodpecker Melanerpes formicivorus
    # Count: 2
    Date:
    Observer: Liam Pentangelo
    Location: Meadow Road, Rafter J subdivision La Plata
  36. Common Yellowthroat Geothlypis trichas
    # Count: 1
    Date:
    Observer: Gene Rutherford
    Location: Cerise Regional Park Montrose
  37. Dusky Flycatcher Empidonax oberholseri
    # Count: 1
    Date:
    Observer: Mike Thompson
    Location: Private Montezuma
  38. Gray Flycatcher Empidonax wrightii
    # Count: 1
    Date:
    Observer: Kurt Hillman
    Location: Pastorius Reservoir La Plata
  39. Semipalmated Plover Charadrius semipalmatus
    # Count: 1
    Date:
    Observer: George Ho
    Location: Rocky Mountain Arsenal NWR--Lake Ladora Adams
  40. Grasshopper Sparrow Ammodramus savannarum
    # Count: 7
    Date:
    Observer: Archer Silverman
    Location: Kiowa, south of Chivington Kiowa
  41. Virginia's Warbler Leiothlypis virginiae
    # Count: 1
    Date:
    Observer: Mike Thompson
    Location: Private Montezuma
  42. Eurasian Wigeon Mareca penelope
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Neenoshe Reservoir, Eads US-CO 38.33632, -102.68632 Kiowa
  43. Northern Parula Setophaga americana
    # Count: 1
    Date:
    Observer: Jane Stulp
    Location: Farm Yard Prowers
  44. Semipalmated Sandpiper Calidris pusilla
    # Count: 7
    Date:
    Observer: Glenn Walbek
    Location: Cheraw Lake Otero
  45. Glossy Ibis Plegadis falcinellus
    # Count: 3
    Date:
    Observer: Cole Wild
    Location: Ryan Gulch Reservoir Larimer
  46. Wilson's Phalarope Phalaropus tricolor
    # Count: 1
    Date:
    Observer: Darth Aves
    Location: Cheraw Lake Otero
  47. Golden-crowned Sparrow Zonotrichia atricapilla
    # Count: 1
    Date:
    Observer: Andrew McFadden
    Location: Ryan Gulch Reservoir Larimer
  48. Black-throated Gray Warbler Setophaga nigrescens
    # Count: 2
    Date:
    Observer: Lisa Wilk
    Location: La Plata CR 136 from Rd 128 to Hwy 140 La Plata
  49. Blue-gray Gnatcatcher Polioptila caerulea
    # Count: 2
    Date:
    Observer: Loretta Klingenberg
    Location: 416 Deerfield Circle, Fort Collins, Colorado, US (40.643, -105.082) Larimer
  50. Common Poorwill Phalaenoptilus nuttallii
    # Count: 1
    Date:
    Observer: Eric DeFonso 🦑
    Location: County Rd, Pritchett US-CO 37.13405, -103.08524 Baca
  51. Forster's Tern Sterna forsteri
    # Count: 4
    Date:
    Observer: Anonymous eBirder
    Location: Thurston Reservoir Prowers
  52. Western Sandpiper Calidris mauri
    # Count: 1
    Date:
    Observer: Amy Hudechek
    Location: Highline Lake State Park, Loma US-CO 39.28068, -108.84207 Mesa
  53. Wilson's Warbler Cardellina pusilla
    # Count: 1
    Date:
    Observer: Brandon K. Percival
    Location: Lamar Community College Prowers
  54. Cassia Crossbill Loxia sinesciuris
    # Count: 2
    Date:
    Observer: Luke Pheneger
    Location: Turquoise Lake Lake
  55. Black-bellied Plover Pluvialis squatarola
    # Count: 1
    Date:
    Observer: Bill Schneider
    Location: Highline Lake SP Mesa
  56. Western Tanager Piranga ludoviciana
    # Count: 1
    Date:
    Observer: Melissa May
    Location: 1st St, Durango, Colorado, US La Plata
  57. Common Black Hawk Buteogallus anthracinus
    # Count: 1
    Date:
    Observer: Jeremy Ballard
    Location: Lake Pueblo State Park, Pueblo US-CO (38.2558,-104.7457) Pueblo
  58. Western Kingbird Tyrannus verticalis
    # Count: 1
    Date:
    Observer: Amanda White
    Location: 128–206 CR-301, Durango US-CO 37.21394, -107.82126 La Plata
  59. Black-chinned Hummingbird Archilochus alexandri
    # Count: 1
    Date:
    Observer: Mike Thompson
    Location: Ismay Trading Post Montezuma
  60. White-winged Scoter Melanitta deglandi
    # Count: 1
    Date:
    Observer: Ben Sampson
    Location: South Platte Park--Cooley Lake (limited access) Arapahoe
  61. Lark Sparrow Chondestes grammacus
    # Count: 1
    Date:
    Observer: Bob Spencer
    Location: Briggsdale (town) Weld
  62. Willet Tringa semipalmata
    # Count: 2
    Date:
    Observer: Preston Larimer
    Location: Arkansas River, Salida US-CO 38.57171, -106.05453 Chaffee
  63. Western Cattle-Egret Ardea ibis
    # Count: 1
    Date:
    Observer: Wendy Grant
    Location: Pastorius Reservoir La Plata
  64. Northern Bobwhite Colinus virginianus
    # Count: 15
    Date:
    Observer: ERIK BRUHNKE
    Location: Bledsoe Cattle Company (General Area - PRIVATE) Yuma
  65. Solitary Sandpiper Tringa solitaria
    # Count: 1
    Date:
    Observer: Trey Rogers
    Location: Trading Post to Texas Creek Float Fremont
  66. Lapland Longspur Calcarius lapponicus
    # Count: 1
    Date:
    Observer: Peter Burke
    Location: Pawnee NG Bird Tour—Stops 5-8 Weld
  67. Caspian Tern Hydroprogne caspia
    # Count: 1
    Date:
    Observer: Bill Schneider
    Location: Highline Lake SP Mesa
  68. Broad-tailed Hummingbird Selasphorus platycercus
    # Count: 1
    Date:
    Observer: Randall Nelson
    Location: Hidden River (yard) Douglas
  69. Crested Caracara Caracara plancus
    # Count: 1
    Date:
    Observer: Timo Mitzen
    Location: Red Creek Springs Road Pueblo
  70. Marbled Godwit Limosa fedoa
    # Count: 1
    Date:
    Observer: Mike Chen
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  71. Field Sparrow Spizella pusilla
    # Count: 1
    Date:
    Observer: Lori Zabel
    Location: Joseph Yard Larimer
  72. Red-bellied Woodpecker Melanerpes carolinus
    # Count: 1
    Date:
    Observer: Glenn Walbek
    Location: South Republican SWA--south side Yuma
  73. Northern Mockingbird Mimus polyglottos
    # Count: 1
    Date:
    Observer: Lucas Wilson
    Location: Lake Pueblo SP--W Fishing Rd Pueblo
  74. Orange-crowned Warbler Leiothlypis celata
    # Count: 1
    Date:
    Observer: Daniel Carrier
    Location: Waneka Lake/Greenlee Preserve Boulder
  75. Swamp Sparrow Melospiza georgiana
    # Count: 1
    Date:
    Observer: Chris Wood
    Location: Robert A Easton Regional Park Jefferson
  76. Lucy's Warbler Leiothlypis luciae
    # Count: 1
    Date:
    Observer: Stephen Tarnowski
    Location: Lower Yellowjacket Montezuma
  77. Brewer's Sparrow Spizella breweri
    # Count: 2
    Date:
    Observer: Mike Thompson
    Location: 81321, Cortez US-CO 37.23897, -109.03010 Montezuma
  78. Upland Sandpiper Bartramia longicauda
    # Count: 2
    Date:
    Observer: Gary Rosenberg
    Location: 33000–35460 County Road 2, Orchard US-CO 40.49581, -104.10894 Morgan
  79. Ross's Goose Anser rossii
    # Count: 1
    Date:
    Observer: Pete Christiansen
    Location: Rogers Grove Park Boulder
  80. Long-tailed Duck Clangula hyemalis
    # Count: 1
    Date:
    Observer: Alex Smilor
    Location: Poudre Trail--gravel ponds west of Taft Hill Rd Larimer
  81. Boreal Owl Aegolius funereus
    # Count: 1
    Date:
    Observer: Kathy Mihm Dunning
    Location: Joe Wright Reservoir Larimer
  82. Iceland Gull Larus glaucoides
    # Count: 1
    Date:
    Observer: Simon Tolzmann
    Location: Horseshoe Reservoir Larimer
  83. Short-billed Gull Larus brachyrhynchus
    # Count: 1
    Date:
    Observer: Nick Komar
    Location: Horseshoe Reservoir Larimer
  84. Bohemian Waxwing Bombycilla garrulus
    # Count: 1
    Date:
    Observer: Craig Glover
    Location: Walden Ponds Trail, Boulder US-CO 40.04376, -105.18486 Boulder
  85. Lark Bunting Calamospiza melanocorys
    # Count: 2
    Date:
    Observer: Evalynn Trumbo
    Location: County Road X, Hasty US-CO 37.94060, -102.75551 Bent
  86. Cliff Swallow Petrochelidon pyrrhonota
    # Count: 1
    Date:
    Observer: Brandon K. Percival
    Location: Lake Pueblo SP--Valco Ponds Pueblo
  87. Northern House Wren Troglodytes aedon
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Arapahoe Bend Natural Area Larimer
  88. Rusty Blackbird Euphagus carolinus
    # Count: 1
    Date:
    Observer: Chris Wood
    Location: Holbrook Reservoir Otero
  89. Black-throated Sparrow Amphispiza bilineata
    # Count: 1
    Date:
    Observer: Chris Wood
    Location: Villegreen Rd (within 2 km of Hwy 109) Otero
  90. Short-billed Dowitcher Limnodromus griseus
    # Count: 1
    Date:
    Observer: Matthew Swoveland
    Location: Hwy 38 and Tomichi Creek fields Gunnison
  91. Greater Prairie-Chicken Tympanuchus cupido
    # Count: 16
    Date:
    Observer: Marco Valentini
    Location: Prairies near Wray Yuma
  92. Crissal Thrasher Toxostoma crissale
    # Count: 1
    Date:
    Observer: Chris Wood
    Location: Cottonwood Canyon CRTH (37.1350,-103.0836) Baca
  93. Rufous-crowned Sparrow Aimophila ruficeps
    # Count: 2
    Date:
    Observer: Chris Wood
    Location: Cottonwood Canyon CRTH (37.1350,-103.0836) Baca
  94. Northern Shrike Lanius borealis
    # Count: 1
    Date:
    Observer: Lucas Bobay
    Location: Rawhide Flats Rd at 40.85975, -105.07512 Larimer
  95. Chestnut-collared Longspur Calcarius ornatus
    # Count: 50
    Date:
    Observer: Stephan Lorenz I Rockjumper Birding Tours
    Location: County Road 42, Arriba US-CO (39.2591,-103.2856) Lincoln
  96. Sora Porzana carolina
    # Count: 1
    Date:
    Observer: Luke Pheneger
    Location: Nepesta Road Marsh Pueblo
  97. Chipping Sparrow Spizella passerina
    # Count: 1
    Date:
    Observer: Peter Burke
    Location: Royal Gorge Park--Nature Center Fremont
  98. Northern Rough-winged Swallow Stelgidopteryx serripennis
    # Count: 1
    Date:
    Observer: Luke Pheneger
    Location: E US Hwy 50, Avondale US-CO (38.2447,-104.3438) Pueblo
  99. American Three-toed Woodpecker Picoides dorsalis
    # Count: 3
    Date:
    Observer: Caden Klanderman
    Location: Deer Creek Canyon Park Jefferson
  100. Brown Thrasher Toxostoma rufum
    # Count: 1
    Date:
    Observer: Jim Ward
    Location: Waneka Lake/Greenlee Preserve Boulder
  101. Long-billed Curlew Numenius americanus
    # Count: 1
    Date:
    Observer: George Ho
    Location: Rocky Mountain Arsenal NWR--Lake Ladora Adams
  102. Ladder-backed Woodpecker Dryobates scalaris
    # Count: 2
    Date:
    Observer: Ryley Olsen
    Location: Hanover Road El Paso
  103. Gray Catbird Dumetella carolinensis
    # Count: 1
    Date:
    Observer: Matthew Hazelgren
    Location: Wheat Ridge Greenbelt Jefferson
  104. American Barn Owl Tyto furcata
    # Count: 2
    Date:
    Observer: Scott Rashid
    Location: Oil company (private) Weld
  105. Juniper Titmouse Baeolophus ridgwayi
    # Count: 3
    Date:
    Observer: Edward Hicks
    Location: Red Creek Springs Road West Pueblo
  106. Western Screech-Owl Megascops kennicottii
    # Count: X
    Date:
    Observer: Marc Kenney
    Location: Grand Valley Audubon Nature Center Mesa
  107. Loggerhead Shrike Lanius ludovicianus
    # Count: 1
    Date:
    Observer: Edward Hicks
    Location: (38.17611, -105.50569) Custer
  108. Yellow-bellied Sapsucker Sphyrapicus varius
    # Count: 1
    Date:
    Observer: Richard Trinkner
    Location: 1540 Hawthorn Avenue Boulder
  109. Least Sandpiper Calidris minutilla
    # Count: 2
    Date:
    Observer: Adrian Lakin
    Location: Loloff Reservoir Weld
  110. Williamson's Sapsucker Sphyrapicus thyroideus
    # Count: 2
    Date:
    Observer: Luke Pheneger
    Location: Mesa Antero area Chaffee
  111. Sagebrush Sparrow Artemisiospiza nevadensis
    # Count: 7
    Date:
    Observer: Leon Tkacenko
    Location: Lower Spring Creek to Buzzard Gulch Montrose
  112. American Herring Gull Larus smithsonianus
    # Count: 1
    Date:
    Observer: Ric Olson
    Location: Fox run parking to Kingfisher Bridge parking, Littleton, Colorado, US (39.523, -105.086) Jefferson
  113. White-tailed Ptarmigan Lagopus leucura
    # Count: 1
    Date:
    Observer: Timothy Zander
    Location: Breckenridge Ski Resort Summit
  114. Common Loon Gavia immer
    # Count: 1
    Date:
    Observer: Don Marsh
    Location: Ridgway SP--Bay View Day Use Area Ouray
  115. Vermilion Flycatcher Pyrocephalus rubinus
    # Count: 1
    Date:
    Observer: Sheila Webber
    Location: Apple Valley Rd. Boulder
  116. Red-naped Sapsucker Sphyrapicus nuchalis
    # Count: 1
    Date:
    Observer: Richard Trinkner
    Location: 1540 Hawthorn Avenue Boulder
  117. Broad-winged Hawk Buteo platypterus
    # Count: 3
    Date:
    Observer: Joo Tan
    Location: Pella Crossing Open Space Boulder
  118. Chukar Alectoris chukar
    # Count: 4
    Date:
    Observer: Jack Belleghem
    Location: 81630, De Beque US-CO (39.1606,-108.3341) Mesa
  119. Lesser Black-backed Gull Larus fuscus
    # Count: 2
    Date:
    Observer: Buzz Schaumberg
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  120. Lewis's Woodpecker Melanerpes lewis
    # Count: 5
    Date:
    Observer: Edward Hicks
    Location: Mesa Antero Chaffee
  121. Golden-crowned Kinglet Regulus satrapa
    # Count: 2
    Date:
    Observer: Edward Hicks
    Location: Mesa Antero Chaffee
  122. Violet-green Swallow Tachycineta thalassina
    # Count: 1
    Date:
    Observer: Tim Ryan
    Location: Parker Regional Park (aka Salisbury Equestrian Park) Douglas
  123. Northern Cardinal Cardinalis cardinalis
    # Count: 1
    Date:
    Observer: Raymond Sperger
    Location: Deer Creek at Cougar Rd Jefferson
  124. Thick-billed Longspur Rhynchophanes mccownii
    # Count: 30
    Date:
    Observer: Adrian Lakin
    Location: Weld County Road 136, Grover, Colorado, US (40.973, -104.156) Weld
  125. Sharp-tailed Grouse Tympanuchus phasianellus
    # Count: 14
    Date:
    Observer: Adrian Lakin
    Location: 55359 County Road 134, Grover, Colorado, US (40.96, -103.991) Weld
  126. Northern Saw-whet Owl Aegolius acadicus
    # Count: 1
    Date:
    Observer: Lori Morton
    Location: Red Fern and Indian Paint Douglas
  127. Northern Pygmy-Owl Glaucidium gnoma
    # Count: 2
    Date:
    Observer: Bob Fields
    Location: Young Gulch Trail Larimer
  128. Neotropic Cormorant Nannopterum brasilianum
    # Count: 2
    Date:
    Observer: Mike Thompson
    Location: Industrial Park Pond Montezuma
  129. Black-crowned Night Heron Nycticorax nycticorax
    # Count: 5
    Date:
    Observer: Cassandra Stroud
    Location: Huston Lake and Park Denver
  130. American Goshawk Astur atricapillus
    # Count: 1
    Date:
    Observer: Uwe Abraham
    Location: Cottonwood Park Jefferson
  131. Great Egret Ardea alba
    # Count: 1
    Date:
    Observer: David Fraide
    Location: Old St Louis Natural Area Larimer
  132. Bank Swallow Riparia riparia
    # Count: 90
    Date:
    Observer: Laurie Krall
    Location: Lake Pueblo SP--Valco Ponds Pueblo
  133. Snowy Plover Anarhynchus nivosus
    # Count: 2
    Date:
    Observer: Edward Hicks
    Location: Cheraw Lake Otero
  134. Fox Sparrow Passerella iliaca
    # Count: 1
    Date:
    Observer: Leon Tkacenko
    Location: Black Canyon of the Gunnison NP--South Rim Campground Montrose
  135. Short-eared Owl Asio flammeus
    # Count: 1
    Date:
    Observer: Ethan Muller
    Location: Yuma County, Colorado Yuma
  136. Dunlin Calidris alpina
    # Count: 1
    Date:
    Observer: Bill Harris
    Location: Sweitzer Lake SP Delta
  137. Clark's Grebe Aechmophorus clarkii
    # Count: 6
    Date:
    Observer: Duke Tufty
    Location: Lake Meredith Crowley
  138. Spotted Sandpiper Actitis macularius
    # Count: 1
    Date:
    Observer: Loch Kilpatrick
    Location: East Boat Ramp Access, Aurora, Colorado, US (39.639, -104.841) Arapahoe
  139. Snowy Egret Egretta thula
    # Count: 1
    Date:
    Observer: Jane Lee
    Location: Denver City Park--lakes Denver
  140. Bewick's Wren Thryomanes bewickii
    # Count: 1
    Date:
    Observer: Joseph Gowen
    Location: Runyon/Fountain Lakes SWA Pueblo
  141. Dusky Grouse Dendragapus obscurus
    # Count: 1
    Date:
    Observer: Leon Tkacenko
    Location: Black Canyon of the Gunnison NP--Oak Flats Trail Montrose
  142. Band-tailed Pigeon Patagioenas fasciata
    # Count: 1
    Date:
    Observer: Anthony Cercone
    Location: Estes Park YMCA Camp Larimer
  143. White-faced Ibis Plegadis chihi
    # Count: 1
    Date:
    Observer: Michael Morton
    Location: Lagerman Agricultural Preserve--Lagerman Reservoir Boulder
  144. Black-necked Stilt Himantopus mexicanus
    # Count: 1
    Date:
    Observer: Kathy Mihm Dunning
    Location: Rangely River Park and WTP (view from outside of fence) Rio Blanco
  145. Canvasback Aythya valisineria
    # Count: 2
    Date:
    Observer: Glenn Walbek
    Location: Karval Reservoir SWA Lincoln
  146. Ferruginous Hawk Buteo regalis
    # Count: 1
    Date:
    Observer: Megan Jones Patterson
    Location: Gunbarrel Hill Boulder
  147. Vesper Sparrow Pooecetes gramineus
    # Count: 2
    Date:
    Observer: Kenna Sue Trickey
    Location: Westerley Creek Park Denver
  148. Rock Wren Salpinctes obsoletus
    # Count: 1
    Date:
    Observer: john higgins
    Location: Jouflas CG Mesa
  149. Barn Swallow Hirundo rustica
    # Count: 1
    Date:
    Observer: Matt Hofeditz
    Location: Plaster Reservoir Broomfield
  150. American Pipit Anthus rubescens
    # Count: 4
    Date:
    Observer: Myron Gerhard
    Location: Chatfield SP--Plum Creek Delta Douglas
  151. Savannah Sparrow Passerculus sandwichensis
    # Count: 2
    Date:
    Observer: Kitawna Hoover
    Location: Matthews-Reeser Bird Sanctuary Larimer
  152. Scaled Quail Callipepla squamata
    # Count: 7
    Date:
    Observer: Linda Cunico
    Location: 414 S Hacienda Del Sol Dr, Pueblo US-CO 38.32821, -104.77951 Pueblo
  153. Eared Grebe Podiceps nigricollis
    # Count: 2
    Date:
    Observer: Richard Brown
    Location: Rawhide Energy Station/Hamilton Reservoir Larimer
  154. Canyon Wren Catherpes mexicanus
    # Count: 1
    Date:
    Observer: Todd Deininger
    Location: Rabbit Mountain Boulder
  155. Swainson's Hawk Buteo swainsoni
    # Count: 1
    Date:
    Observer: Glenn Walbek
    Location: Kinney Lake SWA Lincoln
  156. Sage Thrasher Oreoscoptes montanus
    # Count: 1
    Date:
    Observer: Glenn Walbek
    Location: Kinney Lake SWA Lincoln
  157. Eastern Bluebird Sialia sialis
    # Count: 3
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus Boulder
  158. Hermit Thrush Catharus guttatus
    # Count: 1
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus Boulder
  159. Snow Goose Anser caerulescens
    # Count: 1
    Date:
    Observer: Rob Copeland
    Location: Grass Valley Road Pond (private, view from road) Garfield
  160. Merlin Falco columbarius
    # Count: 1
    Date:
    Observer: Audrey Curtis
    Location: County Road 41, Burlington, Colorado, US (39.18, -102.408) Kit Carson
  161. Mountain Plover Anarhynchus montanus
    # Count: 1
    Date:
    Observer: Alan Ketcham
    Location: Myers Road, Colorado Springs, Colorado, US (38.593, -104.466) El Paso
  162. White-throated Swift Aeronautes saxatalis
    # Count: 1
    Date:
    Observer: john higgins
    Location: Colorado River--Riverside area Mesa
  163. Greater White-fronted Goose Anser albifrons
    # Count: 1
    Date:
    Observer: Todd Deininger
    Location: McCall Lake Boulder
  164. Gambel's Quail Callipepla gambelii
    # Count: 36
    Date:
    Observer: Cynthia Grover
    Location: Big Salt Wash - feeders Mesa
  165. Prairie Falcon Falco mexicanus
    # Count: 1
    Date:
    Observer: Sabrina Riley
    Location: 10752 Ridgepole Dr, Colorado Springs US-CO 38.74432, -104.62970 El Paso
  166. American Tree Sparrow Spizelloides arborea
    # Count: 1
    Date:
    Observer: Aaron Shipe
    Location: Bear Creek Lake Park Jefferson
  167. Clark's Nutcracker Nucifraga columbiana
    # Count: 1
    Date:
    Observer: Laurel George
    Location: 34228 Mineral Lane, Pine, Colorado, US (39.433, -105.393) Jefferson
  168. Canyon Towhee Melozone fusca
    # Count: 2
    Date:
    Observer: Cindy Morrow
    Location: Red Creek Springs Road West Pueblo
  169. Red Crossbill Loxia curvirostra
    # Count: 1
    Date:
    Observer: Joe Tuttle
    Location: Near Home on Middle Fork Ranch *PRIVATE* Park
  170. Red-breasted Merganser Mergus serrator
    # Count: 10
    Date:
    Observer: daria drobnick
    Location: Big Johnson Reservoir & Bluestem Prairie Open Space El Paso
  171. Pine Grosbeak Pinicola enucleator
    # Count: 3
    Date:
    Observer: Mary Leigh
    Location: The Goshawk (private, but open to public) Clear Creek
  172. White-throated Sparrow Zonotrichia albicollis
    # Count: 1
    Date:
    Observer: Randall Siebert
    Location: Waneka Lake/Greenlee Preserve Boulder
  173. White-winged Dove Zenaida asiatica
    # Count: 1
    Date:
    Observer: Patricia Stuckey
    Location: Spaulding between Golfwood & Venturi, 81007 Pueblo
  174. Curve-billed Thrasher Toxostoma curvirostre
    # Count: 1
    Date:
    Observer: Patricia Stuckey
    Location: Spaulding between Golfwood & Venturi, 81007 Pueblo
  175. Lincoln's Sparrow Melospiza lincolnii
    # Count: 2
    Date:
    Observer: Kathy Mihm Dunning
    Location: Rio Blanco SWA--Rio Blanco Lake Rio Blanco
  176. Chihuahuan Raven Corvus cryptoleucus
    # Count: 2
    Date:
    Observer: Jim Merritt
    Location: Hanover Rd, Fountain US-CO 38.57794, -104.60241 El Paso
  177. Barrow's Goldeneye Bucephala islandica
    # Count: 10
    Date:
    Observer: Greg Powell
    Location: Buena Vista Chaffee
  178. Franklin's Gull Leucophaeus pipixcan
    # Count: 6
    Date:
    Observer: Greg Powell
    Location: Buena Vista Chaffee
  179. Pinyon Jay Gymnorhinus cyanocephalus
    # Count: 4
    Date:
    Observer: Marsha Walling
    Location: The Hill Garfield
  180. Northern Pintail Anas acuta
    # Count: X
    Date:
    Observer: Luciana L.
    Location: Monte Vista NWR--Alamosa CR 8 S viewing area Rio Grande
  181. American Avocet Recurvirostra americana
    # Count: 3
    Date:
    Observer: Ken Wat
    Location: Rocky Mountain Arsenal NWR Adams
  182. Yellow-headed Blackbird Xanthocephalus xanthocephalus
    # Count: 1
    Date:
    Observer: Eric DeFonso 🦑
    Location: East Boulder Trail--Teller Lakes Boulder
  183. Yellow-rumped Warbler Setophaga coronata
    # Count: 4
    Date:
    Observer: Jeff Dawson
    Location: Bear Creek Park (Denver) Denver
  184. Long-billed Dowitcher Limnodromus scolopaceus
    # Count: 1
    Date:
    Observer: Gene Rutherford
    Location: Sheep Pond Montrose
  185. Burrowing Owl Athene cunicularia
    # Count: 1
    Date:
    Observer: MaryLynne Ketcham
    Location: Squirrel Creek Road, Colorado Springs, Colorado, US (38.694, -104.549) El Paso
  186. Lesser Yellowlegs Tringa flavipes
    # Count: 3
    Date:
    Observer: Todd Deininger
    Location: Union Reservoir Weld
  187. Baird's Sandpiper Calidris bairdii
    # Count: 1
    Date:
    Observer: Todd Deininger
    Location: Union Reservoir Weld
  188. Bonaparte's Gull Chroicocephalus philadelphia
    # Count: 8
    Date:
    Observer: Todd Deininger
    Location: Union Reservoir Weld
  189. Western Grebe Aechmophorus occidentalis
    # Count: 2
    Date:
    Observer: Todd Deininger
    Location: Union Reservoir Weld
  190. Sharp-shinned Hawk Accipiter striatus
    # Count: 1
    Date:
    Observer: Todd Deininger
    Location: Union Reservoir Weld
  191. Belted Kingfisher Megaceryle alcyon
    # Count: 1
    Date:
    Observer: Kevin Smith
    Location: Walden Ponds Wildlife Habitat--Walden & Sawhill Ponds all together Boulder
  192. Ruby-crowned Kinglet Corthylio calendula
    # Count: 1
    Date:
    Observer: Kevin Smith
    Location: Walden Ponds Wildlife Habitat--Walden & Sawhill Ponds all together Boulder
  193. Brewer's Blackbird Euphagus cyanocephalus
    # Count: 16
    Date:
    Observer: Todd Deininger
    Location: Union Reservoir Weld
  194. Peregrine Falcon Falco peregrinus
    # Count: 1
    Date:
    Observer: DAVID HILL
    Location: Chatfield SP (Jefferson Co) Jefferson
  195. Wilson's Snipe Gallinago delicata
    # Count: 3
    Date:
    Observer: Mark Chavez
    Location: Bear Creek Lake Park Jefferson
  196. Pied-billed Grebe Podilymbus podiceps
    # Count: 1
    Date:
    Observer: Mark Chavez
    Location: Bear Creek Lake Park Jefferson
  197. Harris's Sparrow Zonotrichia querula
    # Count: 1
    Date:
    Observer: Mark Chavez
    Location: Bear Creek Lake Park Jefferson
  198. Evening Grosbeak Coccothraustes vespertinus
    # Count: 7
    Date:
    Observer: Bryan Gieszl
    Location: Home Pitkin
  199. Greater Roadrunner Geococcyx californianus
    # Count: 1
    Date:
    Observer: Darth Aves
    Location: Lake Hasty (lake and campground) Bent
  200. Turkey Vulture Cathartes aura
    # Count: 6
    Date:
    Observer: Darth Aves
    Location: Lake Hasty (lake and campground) Bent
  201. Mountain Bluebird Sialia currucoides
    # Count: 1
    Date:
    Observer: Jean Ray
    Location: Dakota Ridge and Nearby Routt
  202. Blue-winged Teal Spatula discors
    # Count: 6
    Date:
    Observer: Kellen Bryant
    Location: Cherry Creek SP--Prairie Loop Arapahoe
  203. Canada Jay Perisoreus canadensis
    # Count: 2
    Date:
    Observer: Mary Mac Gregor
    Location: Lof Way, Private Residence, Clark, Colorado, US Routt
  204. Black Phoebe Sayornis nigricans
    # Count: 2
    Date:
    Observer: SeEtta Moss
    Location: Private farms-JL Fremont
  205. Greater Scaup Aythya marila
    # Count: 1
    Date:
    Observer: Jason Cole
    Location: Plaster Reservoir Broomfield
  206. American White Pelican Pelecanus erythrorhynchos
    # Count: 2
    Date:
    Observer: Matthew Nesselrodt
    Location: Walden Ponds Wildlife Habitat--Walden & Sawhill Ponds all together Boulder
  207. Osprey Pandion haliaetus
    # Count: 3
    Date:
    Observer: Matthew Nesselrodt
    Location: Walden Ponds Wildlife Habitat--Walden & Sawhill Ponds all together Boulder
  208. Brown-headed Cowbird Molothrus ater
    # Count: 1
    Date:
    Observer: Jason Cole
    Location: Plaster Reservoir Broomfield
  209. Cinnamon Teal Spatula cyanoptera
    # Count: 3
    Date:
    Observer: Andrew McFadden
    Location: Bud Mielke Reservoir Larimer
  210. Greater Yellowlegs Tringa melanoleuca
    # Count: 2
    Date:
    Observer: Andrew McFadden
    Location: Bud Mielke Reservoir Larimer
  211. California Gull Larus californicus
    # Count: 2
    Date:
    Observer: Andrew McFadden
    Location: Bud Mielke Reservoir Larimer
  212. Horned Grebe Podiceps auritus
    # Count: 1
    Date:
    Observer: Andrew McFadden
    Location: Bud Mielke Reservoir Larimer
  213. Bald Eagle Haliaeetus leucocephalus
    # Count: 1
    Date:
    Observer: Andrew McFadden
    Location: Bud Mielke Reservoir Larimer
  214. Great-tailed Grackle Quiscalus mexicanus
    # Count: 2
    Date:
    Observer: Andrew McFadden
    Location: Bud Mielke Reservoir Larimer
  215. Wild Turkey Meleagris gallopavo
    # Count: 14
    Date:
    Observer: Sarah Behunek
    Location: 4936 Sandstone Drive, Fort Collins, Colorado, US (40.518, -105.18) Larimer
  216. Woodhouse's Scrub-Jay Aphelocoma woodhouseii
    # Count: 1
    Date:
    Observer: Sarah Behunek
    Location: 4936 Sandstone Drive, Fort Collins, Colorado, US (40.518, -105.18) Larimer
  217. Great Blue Heron Ardea herodias
    # Count: 1
    Date:
    Observer: Sandra Hardy Reigel
    Location: 1095 S Pitkin Ave Boulder
  218. Brown Creeper Certhia americana
    # Count: 1
    Date:
    Observer: Deb G
    Location: Home El Paso
  219. Western Bluebird Sialia mexicana
    # Count: 2
    Date:
    Observer: Deb G
    Location: Home El Paso
  220. Mexican Duck Anas diazi
    # Count: 1
    Date:
    Observer: Winston Liu
    Location: Waneka Lake/Greenlee Preserve--Waneka Lake only Boulder
  221. Marsh Wren Cistothorus palustris
    # Count: 1
    Date:
    Observer: Winston Liu
    Location: Waneka Lake/Greenlee Preserve--Waneka Lake only Boulder
  222. Wood Duck Aix sponsa
    # Count: 2
    Date:
    Observer: Lorraine Lanning
    Location: Wheat Ridge Greenbelt Jefferson
  223. Redhead Aythya americana
    # Count: 1
    Date:
    Observer: Lorraine Lanning
    Location: Wheat Ridge Greenbelt Jefferson
  224. Common Goldeneye Bucephala clangula
    # Count: 2
    Date:
    Observer: Lorraine Lanning
    Location: Wheat Ridge Greenbelt Jefferson
  225. Common Merganser Mergus merganser
    # Count: 4
    Date:
    Observer: Lorraine Lanning
    Location: Wheat Ridge Greenbelt Jefferson
  226. Virginia Rail Rallus limicola
    # Count: 2
    Date:
    Observer: Lorraine Lanning
    Location: Wheat Ridge Greenbelt Jefferson
  227. Double-crested Cormorant Nannopterum auritum
    # Count: X
    Date:
    Observer: Lorraine Lanning
    Location: Wheat Ridge Greenbelt Jefferson
  228. Eastern Screech-Owl Megascops asio
    # Count: 1
    Date:
    Observer: Bob Fields
    Location: Lee Martinez Park Larimer
  229. Great Horned Owl Bubo virginianus
    # Count: 1
    Date:
    Observer: Lorraine Lanning
    Location: Wheat Ridge Greenbelt Jefferson
  230. Hairy Woodpecker Dryobates villosus
    # Count: 1
    Date:
    Observer: Lorraine Lanning
    Location: Wheat Ridge Greenbelt Jefferson
  231. American Kestrel Falco sparverius
    # Count: 2
    Date:
    Observer: Kenyon Moon
    Location: balcony Denver
  232. Tree Swallow Tachycineta bicolor
    # Count: 1
    Date:
    Observer: Lorraine Lanning
    Location: Wheat Ridge Greenbelt Jefferson
  233. Cedar Waxwing Bombycilla cedrorum
    # Count: 20
    Date:
    Observer: Lorraine Lanning
    Location: Wheat Ridge Greenbelt Jefferson
  234. Gray-crowned Rosy-Finch Leucosticte tephrocotis
    # Count: 1
    Date:
    Observer: Sally Waterhouse
    Location: COCHETOPA HOME Chaffee
  235. Black Rosy-Finch Leucosticte atrata
    # Count: 1
    Date:
    Observer: Sally Waterhouse
    Location: COCHETOPA HOME Chaffee
  236. Brown-capped Rosy-Finch Leucosticte australis
    # Count: 150
    Date:
    Observer: Sally Waterhouse
    Location: COCHETOPA HOME Chaffee
  237. Bufflehead Bucephala albeola
    # Count: 1
    Date:
    Observer: Ken Wat
    Location: West Toll Gate Creek Trail Pond Arapahoe
  238. Green-tailed Towhee Pipilo chlorurus
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Yard, Aspen, Colorado, US (39.189, -106.809) Pitkin
  239. Golden Eagle Aquila chrysaetos
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Tucker Gulch Jefferson
  240. Winter Wren Troglodytes hiemalis
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Tucker Gulch Jefferson
  241. Cassin's Finch Haemorhous cassinii
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Tucker Gulch Jefferson
  242. Lesser Goldfinch Spinus psaltria
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Tucker Gulch Jefferson
  243. Eastern Phoebe Sayornis phoebe
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: 2500 55th Street, Boulder, Colorado, US (40.025, -105.225) Boulder
  244. Mountain Chickadee Poecile gambeli
    # Count: 2
    Date:
    Observer: Tina Peters
    Location: 1- Yard Totals Elbert
  245. White-breasted Nuthatch Sitta carolinensis
    # Count: 2
    Date:
    Observer: Tina Peters
    Location: 1- Yard Totals Elbert
  246. Pygmy Nuthatch Sitta pygmaea
    # Count: 2
    Date:
    Observer: Tina Peters
    Location: 1- Yard Totals Elbert
  247. American Wigeon Mareca americana
    # Count: 2
    Date:
    Observer: Jason B Bidgood
    Location: Westerly Creek--MLK Jr Blvd to Sand Creek Denver
  248. Steller's Jay Cyanocitta stelleri
    # Count: 2
    Date:
    Observer: Bill Eisele
    Location: Lair O' the Bear Park Jefferson
  249. American Dipper Cinclus mexicanus
    # Count: 2
    Date:
    Observer: Bill Eisele
    Location: Lair O' the Bear Park Jefferson
  250. Townsend's Solitaire Myadestes townsendi
    # Count: 1
    Date:
    Observer: Bill Eisele
    Location: Lair O' the Bear Park Jefferson
  251. Cackling Goose Branta hutchinsii
    # Count: 20
    Date:
    Observer: T B
    Location: The Glen Metropolitan Districts Park And Trails El Paso
  252. Northern Shoveler Spatula clypeata
    # Count: 30
    Date:
    Observer: T B
    Location: The Glen Metropolitan Districts Park And Trails El Paso
  253. Gadwall Mareca strepera
    # Count: 7
    Date:
    Observer: T B
    Location: The Glen Metropolitan Districts Park And Trails El Paso
  254. Green-winged Teal Anas crecca
    # Count: 3
    Date:
    Observer: T B
    Location: The Glen Metropolitan Districts Park And Trails El Paso
  255. Ring-necked Duck Aythya collaris
    # Count: 14
    Date:
    Observer: T B
    Location: The Glen Metropolitan Districts Park And Trails El Paso
  256. Lesser Scaup Aythya affinis
    # Count: 6
    Date:
    Observer: T B
    Location: The Glen Metropolitan Districts Park And Trails El Paso
  257. Hooded Merganser Lophodytes cucullatus
    # Count: 1
    Date:
    Observer: T B
    Location: The Glen Metropolitan Districts Park And Trails El Paso
  258. Ruddy Duck Oxyura jamaicensis
    # Count: 1
    Date:
    Observer: T B
    Location: The Glen Metropolitan Districts Park And Trails El Paso
  259. American Coot Fulica americana
    # Count: 10
    Date:
    Observer: T B
    Location: The Glen Metropolitan Districts Park And Trails El Paso
  260. Killdeer Charadrius vociferus
    # Count: 1
    Date:
    Observer: T B
    Location: The Glen Metropolitan Districts Park And Trails El Paso
  261. Ring-billed Gull Larus delawarensis
    # Count: 80
    Date:
    Observer: T B
    Location: The Glen Metropolitan Districts Park And Trails El Paso
  262. Northern Harrier Circus hudsonius
    # Count: 1
    Date:
    Observer: T B
    Location: The Glen Metropolitan Districts Park And Trails El Paso
  263. Red-tailed Hawk Buteo jamaicensis
    # Count: 2
    Date:
    Observer: T B
    Location: The Glen Metropolitan Districts Park And Trails El Paso
  264. Common Grackle Quiscalus quiscula
    # Count: 20
    Date:
    Observer: T B
    Location: The Glen Metropolitan Districts Park And Trails El Paso
  265. Mourning Dove Zenaida macroura
    # Count: 3
    Date:
    Observer: Robert Tonge
    Location: Boyd's House Denver
  266. Common Raven Corvus corax
    # Count: 2
    Date:
    Observer: Kathy Parker
    Location: Spring Gulch-E-W Trail Douglas
  267. Red-breasted Nuthatch Sitta canadensis
    # Count: 2
    Date:
    Observer: Kathy Parker
    Location: Spring Gulch-E-W Trail Douglas
  268. White-crowned Sparrow Zonotrichia leucophrys
    # Count: 1
    Date:
    Observer: Kathy Parker
    Location: Spring Gulch-E-W Trail Douglas
  269. Spotted Towhee Pipilo maculatus
    # Count: 4
    Date:
    Observer: Kathy Parker
    Location: Spring Gulch-E-W Trail Douglas
  270. Rock Pigeon Columba livia
    # Count: 2
    Date:
    Observer: Mary Beverly
    Location: High Desert Place, Parker CO Douglas
  271. Eurasian Collared-Dove Streptopelia decaocto
    # Count: 1
    Date:
    Observer: Mary Beverly
    Location: High Desert Place, Parker CO Douglas
  272. Say's Phoebe Sayornis saya
    # Count: 1
    Date:
    Observer: Mary Beverly
    Location: High Desert Place, Parker CO Douglas
  273. Bushtit Psaltriparus minimus
    # Count: 1
    Date:
    Observer: Mary Beverly
    Location: High Desert Place, Parker CO Douglas
  274. Greater Sage-Grouse Centrocercus urophasianus
    # Count: 45
    Date:
    Observer: Patricia Cullen
    Location: Coalmont Lek--ARRIVE IN DARK, STAY IN CAR, DO NOT DISTURB DISPLAYING BIRDS! Jackson
  275. Northern Flicker Colaptes auratus
    # Count: 2
    Date:
    Observer: Orien Richmond
    Location: Alamo Placita Park, Denver, Colorado, US (39.72, -104.976) Denver
  276. House Sparrow Passer domesticus
    # Count: 6
    Date:
    Observer: Orien Richmond
    Location: Alamo Placita Park, Denver, Colorado, US (39.72, -104.976) Denver
  277. Dark-eyed Junco Junco hyemalis
    # Count: 1
    Date:
    Observer: Orien Richmond
    Location: Alamo Placita Park, Denver, Colorado, US (39.72, -104.976) Denver
  278. Canada Goose Branta canadensis
    # Count: 1
    Date:
    Observer: Jason Zolle
    Location: Waunita Hot Springs lek Gunnison
  279. Sandhill Crane Antigone canadensis
    # Count: 1
    Date:
    Observer: Jason Zolle
    Location: Waunita Hot Springs lek Gunnison
  280. Black-billed Magpie Pica hudsonia
    # Count: 2
    Date:
    Observer: Jason Zolle
    Location: Waunita Hot Springs lek Gunnison
  281. Horned Lark Eremophila alpestris
    # Count: 1
    Date:
    Observer: Jason Zolle
    Location: Waunita Hot Springs lek Gunnison
  282. Pine Siskin Spinus pinus
    # Count: 1
    Date:
    Observer: Jason Zolle
    Location: Waunita Hot Springs lek Gunnison
  283. Song Sparrow Melospiza melodia
    # Count: 1
    Date:
    Observer: Jason Zolle
    Location: Waunita Hot Springs lek Gunnison
  284. Red-winged Blackbird Agelaius phoeniceus
    # Count: 3
    Date:
    Observer: Jason Zolle
    Location: Waunita Hot Springs lek Gunnison
  285. Mallard Anas platyrhynchos
    # Count: 3
    Date:
    Observer: Peter Kaufman
    Location: Westerly Creek Park Denver
  286. Cooper's Hawk Astur cooperii
    # Count: 1
    Date:
    Observer: Peter Kaufman
    Location: Westerly Creek Park Denver
  287. Rough-legged Hawk Buteo lagopus
    # Count: 1
    Date:
    Observer: William Younts
    Location: Waunita Hot Springs lek Gunnison
  288. Downy Woodpecker Dryobates pubescens
    # Count: 1
    Date:
    Observer: Patrick Morgan
    Location: 30th St and Valmont Rd Boulder
  289. Blue Jay Cyanocitta cristata
    # Count: 4
    Date:
    Observer: Patrick Morgan
    Location: 30th St and Valmont Rd Boulder
  290. Black-capped Chickadee Poecile atricapillus
    # Count: 2
    Date:
    Observer: Patrick Morgan
    Location: 30th St and Valmont Rd Boulder
  291. European Starling Sturnus vulgaris
    # Count: 1
    Date:
    Observer: Patrick Morgan
    Location: 30th St and Valmont Rd Boulder
  292. American Robin Turdus migratorius
    # Count: 3
    Date:
    Observer: Patrick Morgan
    Location: 30th St and Valmont Rd Boulder
  293. House Finch Haemorhous mexicanus
    # Count: 8
    Date:
    Observer: Patrick Morgan
    Location: 30th St and Valmont Rd Boulder
  294. American Goldfinch Spinus tristis
    # Count: 1
    Date:
    Observer: Patrick Morgan
    Location: 30th St and Valmont Rd Boulder
  295. Western Meadowlark Sturnella neglecta
    # Count: 1
    Date:
    Observer: William Younts
    Location: Waunita Hot Springs lek Gunnison
  296. American Crow Corvus brachyrhynchos
    # Count: 2
    Date:
    Observer: Kinsey Clark
    Location: fishbowl El Paso
  297. Gunnison Sage-Grouse Centrocercus minimus
    # Count: 15
  298. Lesser Prairie-Chicken Tympanuchus pallidicinctus
    # Count: 8
  299. Long-eared Owl Asio otus
    # Count: 1

Exotic: Provisional (1)

  1. Ring-necked Pheasant Phasianus colchicus
    # Count: 1
    Date:
    Observer: Kellen Bryant
    Location: Cherry Creek SP--Cottonwood Creek Wetlands Arapahoe

Exotic: Escapee (6)

  1. Muscovy Duck Cairina moschata
    # Count: 1
    Date:
    Observer: David Suddjian
    Location: Blaine Park Otero
  2. Red Junglefowl Gallus gallus
    # Count: 5
    Date:
    Observer: Anonymous eBirder
    Location: Old Saint Vrain Rd Boulder
  3. Helmeted Guineafowl Numida meleagris
    # Count: 10
    Date:
    Observer: Paraksh Vankawala
    Location: Walden Ponds Wildlife Habitat--Boulder Creek/Heatherwood Trail Boulder
  4. Mute Swan Cygnus olor
    # Count: 1
    Date:
    Observer: Lance Candealaria
    Location: 3828 Bidens Gate Dr, Timnath US-CO 40.53289, -104.95695 Larimer
  5. Graylag Goose Anser anser
    # Count: 2
    Date:
    Observer: Edward Hicks
    Location: Sands Lake SWA Chaffee
  6. Swan Goose Anser cygnoides
    # Count: 1
    Date:
    Observer: Bruce Ackerman
    Location: Riverbottom Park, Montrose US-CO 38.46587, -107.87957 Montrose

Hybrids (10)

  1. Western x Clark's Grebe (hybrid) Aechmophorus occidentalis x clarkii
    # Count: 1
    Date:
    Observer: Mike Thompson
    Location: Center of McPhee Montezuma
  2. Glossy x White-faced Ibis (hybrid) Plegadis falcinellus x chihi
    # Count: 2
    Date:
    Observer: Zach Poland
    Location: Lagerman Agricultural Preserve--Lagerman Reservoir Boulder
  3. Mallard x Mexican Duck (hybrid) Anas platyrhynchos x diazi
    # Count: 1
    Date:
    Observer: Simon Tolzmann
    Location: Blue Mesa Reservoir--eastern portion Gunnison
  4. Graylag x Canada Goose (hybrid) Anser anser x Branta canadensis
    # Count: 1
    Date:
    Observer: Jane Lee
    Location: Belmar Park Jefferson
  5. Graylag x Swan Goose (hybrid) Anser anser x cygnoides
    # Count: 1
    Date:
    Observer: Patrick O'Driscoll
    Location: Denver City Park Denver
  6. Domestic goose sp. x Canada Goose (hybrid) Anser sp. (Domestic type) x Branta canadensis
    # Count: 1
    Date:
    Observer: Patrick O'Driscoll
    Location: Denver City Park Denver
  7. American Wigeon x Mallard (hybrid) Mareca americana x Anas platyrhynchos
    # Count: 1
    Date:
    Observer: Alex Smilor
    Location: Poudre Trail--gravel ponds west of Taft Hill Rd Larimer
  8. Blue-winged x Cinnamon Teal (hybrid) Spatula discors x cyanoptera
    # Count: 1
    Date:
    Observer: Archer Silverman
    Location: Bluff Lake Nature Center Denver
  9. Black x Eastern Phoebe (hybrid) Sayornis nigricans x phoebe
    # Count: 1
    Date:
    Observer: Lori Zabel
    Location: Poudre Trail - Environmental Drive Pond to Rigden Reservoir Larimer
  10. Eurasian x American Wigeon (hybrid) Mareca penelope x americana
    # Count: 1
    Date:
    Observer: Jeff Percell
    Location: Clover Basin Reservoir Boulder

Additional Taxa (94)

  1. Empidonax sp. Empidonax sp.
    # Count: 1
    Date:
    Observer: Natalie Vande Vuss
    Location: Colorado NM--Devil's Kitchen Trail Mesa
  2. Tringa sp. Tringa sp.
    # Count: 1
    Date:
    Observer: Ted Floyd
    Location: Schofield Open Space (NEW) Boulder
  3. heron sp. Ardeidae sp.
    # Count: 2
    Date:
    Observer: Brian Genge
    Location: Lake Hasty (lake and campground) Bent
  4. plover sp. Charadriidae sp.
    # Count: 1
    Date:
    Observer: Courtney Rella
    Location: Cherry Creek SP--Pelican Point area Arapahoe
  5. Sturnella meadowlark sp. Sturnella sp.
    # Count: 1
    Date:
    Observer: Simon Tolzmann
    Location: Boyd Lake Larimer
  6. Selasphorus sp. Selasphorus sp.
    # Count: 1
    Date:
    Observer: Coen Kliewer
    Location: Pulpit Rock Park El Paso
  7. tern sp. Sterninae sp.
    # Count: 2
    Date:
    Observer: douglas diekman
    Location: Highline Lake SP Mesa
  8. phalarope sp. Phalaropus sp.
    # Count: 1
    Date:
    Observer: Pauline Reetz
    Location: Rocky Mountain Arsenal NWR--Wildlife Drive Adams
  9. Forster's/Common Tern Sterna forsteri/hirundo
    # Count: 1
    Date:
    Observer: Mike Thompson
    Location: Narraguinnep Reservoir Montezuma
  10. Anas sp. Anas sp.
    # Count: 1
    Date:
    Observer: Jeffrey Price
    Location: Lagerman Agricultural Preserve--Lagerman Reservoir Boulder
  11. Gray/Dusky Flycatcher Empidonax wrightii/oberholseri
    # Count: 1
    Date:
    Observer: Mike Thompson
    Location: Totten Reservoir Montezuma
  12. Spizella sp. Spizella sp.
    # Count: 1
    Date:
    Observer: Mike Thompson
    Location: Totten Reservoir Montezuma
  13. Haemorhous sp. Haemorhous sp.
    # Count: 1
    Date:
    Observer: Peter Burke
    Location: Boulder Reservoir complex--Boulder Reservoir Boulder
  14. Scolopacidae sp. Scolopacidae sp.
    # Count: 1
    Date:
    Observer: Peter Burke
    Location: Lagerman Agricultural Preserve--Lagerman Reservoir Boulder
  15. Cliff/Cave Swallow Petrochelidon pyrrhonota/fulva
    # Count: 1
    Date:
    Observer: Owen Robertson
    Location: Underpass Prowers
  16. crossbill sp. Loxia sp.
    # Count: 1
    Date:
    Observer: Gary Koehn
    Location: Fountain Creek Regional Park El Paso
  17. Red/Cassia Crossbill Loxia curvirostra/sinesciuris
    # Count: 2
    Date:
    Observer: Luke Pheneger
    Location: Wildernest (community) Summit
  18. swift sp. Apodidae sp.
    # Count: 4
    Date:
    Observer: Hannah Lerner
    Location: San Juan NF--Falls Creek area La Plata
  19. hummingbird sp. Trochilidae sp.
    # Count: 1
    Date:
    Observer: Chipper Phillips
    Location: Frank Varra Park Broomfield
  20. longspur sp. Calcarius/Rhynchophanes sp.
    # Count: 20
    Date:
    Observer: Kalder Korte
    Location: County Road 56, Sterling US-CO 40.83309, -103.23838 Logan
  21. Golden/Bald Eagle Aquila chrysaetos/Haliaeetus leucocephalus
    # Count: 1
    Date:
    Observer: Steve Kurutz
    Location: Barr Lake SP--Neidrach Nature Trail & Visitor Center area Adams
  22. Bohemian/Cedar Waxwing Bombycilla garrulus/cedrorum
    # Count: 1
    Date:
    Observer: anne anderson
    Location: 10386 N65 th Longmont Boulder
  23. Spizella sp./American Tree Sparrow Spizella/Spizelloides sp.
    # Count: 1
    Date:
    Observer: South Platte Park Wildlife Observation Data
    Location: South Platte Park--South Platte Reservoir (Arapahoe Co) Arapahoe
  24. merganser sp. Mergellus/Lophodytes/Mergus sp.
    # Count: 1
    Date:
    Observer: Ryan Strickhouser
    Location: Fountain Creek Regional Park El Paso
  25. Eurasian/American Wigeon Mareca penelope/americana
    # Count: 1
    Date:
    Observer: Amanda White
    Location: Pastorius Reservoir La Plata
  26. Glossy/White-faced Ibis Plegadis falcinellus/chihi
    # Count: 1
    Date:
    Observer: Joshua Smith
    Location: Cattail Pond Larimer
  27. white egret sp. Egretta/Ardea sp.
    # Count: 2
    Date:
    Observer: GC Speights
    Location: Big Johnson Reservoir & Bluestem Prairie Open Space El Paso
  28. Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceus
    # Count: 1
    Date:
    Observer: Bill Schneider
    Location: Highline Lake SP Mesa
  29. Black/Eastern Phoebe Sayornis nigricans/phoebe
    # Count: 1
    Date:
    Observer: Virginia Dickinson
    Location: Sand Creek--Havana St. to Westerly Creek Denver
  30. loon sp. Gavia sp.
    # Count: 2
    Date:
    Observer: Katy Shirley
    Location: Pastorius Reservoir La Plata
  31. Common/Red-breasted Merganser Mergus merganser/serrator
    # Count: 3
    Date:
    Observer: Ted Floyd
    Location: Waneka Lake/Greenlee Preserve Boulder
  32. Downy/Ladder-backed Woodpecker Dryobates pubescens/scalaris
    # Count: 1
    Date:
    Observer: Kathy Mihm Dunning
    Location: Turks Pond SWA (closed during waterfowl season) Baca
  33. Catharus sp. Catharus sp.
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: 5972 CR-234, Durango US-CO 37.30783, -107.77974 La Plata
  34. Spotted/Eastern Towhee (Rufous-sided Towhee) Pipilo maculatus/erythrophthalmus
    # Count: 1
    Date:
    Observer: Alan Nelson
    Location: Scott Carpenter Park, Boulder US-CO 40.01224, -105.25472 Boulder
  35. new world warbler sp. Parulidae sp.
    # Count: 1
    Date:
    Observer: John Shenot
    Location: Red Fox Meadows Natural Area Larimer
  36. new world flycatcher sp. Tyrannidae sp.
    # Count: 1
    Date:
    Observer: Dante Golash
    Location: Boulder creek skybridge 1 Boulder
  37. finch sp. Fringillidae sp.
    # Count: 2
    Date:
    Observer: carol ibach
    Location: The Wild Animal Sanctuary, Keenesburg US-CO 40.04133, -104.55657 Weld
  38. Western/Eastern Meadowlark Sturnella neglecta/magna
    # Count: 10
    Date:
    Observer: carol ibach
    Location: The Wild Animal Sanctuary, Keenesburg US-CO 40.04133, -104.55657 Weld
  39. owl sp. Strigiformes sp.
    # Count: 1
    Date:
    Observer: Frank and Nancy Hatch
    Location: Windsor Lake & Reservoir Denver
  40. teal sp. Anatidae sp. (teal sp.)
    # Count: 2
    Date:
    Observer: Kelly Liddell
    Location: Fountain Creek Regional Park--Nature Center/Cattail Marsh area El Paso
  41. wren sp. Troglodytidae sp.
    # Count: 1
    Date:
    Observer: Susan Quinlan
    Location: Horsetooth Mountain Open Space Larimer
  42. small falcon sp. Falco sp. (small falcon sp.)
    # Count: 1
    Date:
    Observer: David Suddjian
    Location: Lincoln - CR S at CR 25 and vicinity Lincoln
  43. Streptopelia sp. Streptopelia sp.
    # Count: 1
    Date:
    Observer: Patrick Maurice
    Location: Coal Creek Trail Boulder
  44. Blue-winged/Cinnamon Teal Spatula discors/cyanoptera
    # Count: 1
    Date:
    Observer: Simon Tolzmann
    Location: McCabe Lane Wetlands Gunnison
  45. Buteo/eagle sp. Buteo/eagle sp.
    # Count: 2
    Date:
    Observer: Trenton Voytko
    Location: Casa Luna (PRIVATE) La Plata
  46. grackle sp. Quiscalus sp.
    # Count: 2
    Date:
    Observer: David Wade
    Location: 31503–33555 US-50, Holly US-CO 38.05420, -102.14624 Prowers
  47. new world goldfinch sp. Spinus sp. (goldfinch sp.)
    # Count: 1
    Date:
    Observer: anne anderson
    Location: 10386 N65 th Longmont Boulder
  48. towhee sp. Melozone/Pipilo sp.
    # Count: 9
    Date:
    Observer: Ella Reinemann
    Location: Chatfield SP--Audubon Center & Trails Jefferson
  49. nuthatch sp. Sitta sp.
    # Count: 1
    Date:
    Observer: Maggie N
    Location: Park East Neighborhood West of Foothills Pkwy Boulder
  50. Snow/Ross's Goose Anser caerulescens/rossii
    # Count: 1
    Date:
    Observer: Jane Stulp
    Location: North Gateway Park (limited access during waterfowl season) Prowers
  51. phoebe sp. Sayornis sp.
    # Count: 1
    Date:
    Observer: Edward Raynor
    Location: 2720 N County Road 23, Bellvue US-CO 40.62689, -105.17140 Larimer
  52. Horned/Eared Grebe Podiceps auritus/nigricollis
    # Count: 3
    Date:
    Observer: Jake Shorty
    Location: Marston Reservoir Complex--Marston Reservoir West End Denver
  53. Yellow-bellied/Red-naped Sapsucker Sphyrapicus varius/nuchalis
    # Count: 2
    Date:
    Observer: Tammy McGarity
    Location: Olde Stage Rd Boulder
  54. large falcon sp. Falco sp. (large falcon sp.)
    # Count: 1
    Date:
    Observer: Ben Jacques
    Location: Bluff Lake Nature Center Denver
  55. rosy-finch sp. Leucosticte sp.
    # Count: 1
    Date:
    Observer: Liam Pentangelo
    Location: 4645 W Hwy 24, Florissant US-CO 38.96011, -105.25134 Teller
  56. peep sp. Calidris sp. (peep sp.)
    # Count: 1
    Date:
    Observer: Stephen Price
    Location: McIntosh Lake Boulder
  57. Aythya sp. Aythya sp.
    # Count: 1
    Date:
    Observer: Ted Floyd
    Location: Waneka Lake/Greenlee Preserve Boulder
  58. Accipitrine hawk sp. (former Accipiter sp.) Aerospiza/Tachyspiza/Accipiter/Astur sp.
    # Count: 1
    Date:
    Observer: Art Hudak
    Location: Centennial Park (Arapahoe Co) Arapahoe
  59. grebe sp. Podicipedidae sp.
    # Count: 1
    Date:
    Observer: Thomas Hall
    Location: Kingfisher Point & Nix Farm Natural Area Larimer
  60. large shorebird sp. Charadriiformes sp. (large shorebird sp.)
    # Count: 1
    Date:
    Observer: Astrid Smith
    Location: Squirrel Creek Road Reservoir El Paso
  61. shorebird sp. Charadriiformes sp. (shorebird sp.)
    # Count: 4
    Date:
    Observer: Archer Silverman
    Location: Lagerman Agricultural Preserve--Lagerman Reservoir Boulder
  62. sapsucker sp. Sphyrapicus sp.
    # Count: 1
    Date:
    Observer: Edward Hicks
    Location: Old Washout Creeks Campground Custer
  63. Black-capped/Mountain Chickadee Poecile atricapillus/gambeli
    # Count: 3
    Date:
    Observer: Edward Hicks
    Location: Old Washout Creeks Campground Custer
  64. Double-crested/Neotropic Cormorant Nannopterum auritum/brasilianum
    # Count: 1
    Date:
    Observer: Joan Holmes
    Location: Washington Park Denver
  65. Buteo sp. Buteo sp.
    # Count: 1
    Date:
    Observer: Carol von Michaelis
    Location: W Bowles Ave, Littleton US-CO 39.60979, -105.15324 Jefferson
  66. Larus sp. Larus sp.
    # Count: 2
    Date:
    Observer: Drew Kelly
    Location: Blue Mesa Reservoir--eastern portion Gunnison
  67. bluebird sp. Sialia sp.
    # Count: 3
    Date:
    Observer: Tim Novak
    Location: Castlewood Canyon SP Douglas
  68. falcon sp. Falco sp.
    # Count: 1
    Date:
    Observer: Nick Komar
    Location: Prospect Ponds Natural Area Larimer
  69. Downy/Hairy Woodpecker Dryobates pubescens/villosus
    # Count: 1
    Date:
    Observer: Kathy Mihm Dunning
    Location: Loudy-Simpson Nature Trail Moffat
  70. woodpecker sp. Picidae sp.
    # Count: 1
    Date:
    Observer: Rene Wendell
    Location: 2693 Baneberry Way, Highlands Ranch US-CO 39.52633, -105.02177 Douglas
  71. Common/Barrow's Goldeneye Bucephala clangula/islandica
    # Count: 1
    Date:
    Observer: Kathy Mihm Dunning
    Location: Yampa River SP--South Beach Moffat
  72. dabbling duck sp. Anatidae sp. (dabbling duck sp.)
    # Count: 1
    Date:
    Observer: Lee Bartosz
    Location: Clear Spring Ranch El Paso
  73. Sharp-shinned/Cooper's Hawk Accipiter striatus/Astur cooperii
    # Count: 1
    Date:
    Observer: Linda Chittum
    Location: James M. Robb – Colorado River State Park (West Lake) Mesa
  74. Tree/Violet-green Swallow Tachycineta bicolor/thalassina
    # Count: 40
    Date:
    Observer: Anonymous eBirder
    Location: Centennial Park (Arapahoe Co) Arapahoe
  75. Mallard/Mexican Duck Anas platyrhynchos/diazi
    # Count: 1
    Date:
    Observer: Eric Edgar
    Location: Pastorius Reservoir La Plata
  76. crow/raven sp. Corvus sp.
    # Count: 2
    Date:
    Observer: Jake Shorty
    Location: Fairmount Cemetery Denver
  77. diurnal raptor sp. Accipitriformes/Falconiformes sp.
    # Count: 1
    Date:
    Observer: Stephen Price
    Location: McIntosh Lake Boulder
  78. Western/Clark's Grebe Aechmophorus occidentalis/clarkii
    # Count: 7
    Date:
    Observer: Duke Tufty
    Location: Lake Meredith Crowley
  79. raven sp. Corvus sp. (raven sp.)
    # Count: 2
    Date:
    Observer: Trenton Voytko
    Location: 55008 U.S. 491, Cahone, Colorado, US (37.698, -108.836) Dolores
  80. Greater/Lesser Scaup Aythya marila/affinis
    # Count: 20
    Date:
    Observer: Tyler Wilson
    Location: Agate (town) Elbert
  81. Lesser/Greater Yellowlegs Tringa flavipes/melanoleuca
    # Count: 3
    Date:
    Observer: Tyler Wilson
    Location: Agate (town) Elbert
  82. Rusty/Brewer's Blackbird Euphagus carolinus/cyanocephalus
    # Count: 2
    Date:
    Observer: Hayes Benenson
    Location: Boyd Lake Larimer
  83. swallow sp. Hirundinidae sp.
    # Count: 9
    Date:
    Observer: Elizabeth Fischer
    Location: Chatfield State Park, Littleton US-CO 39.52035, -105.08323 Jefferson
  84. Domestic goose sp. (Domestic type) Anser sp. (Domestic type)
    # Count: 1
    Date:
    Observer: Adam Green
    Location: Belmar Park Jefferson
  85. pigeon/dove sp. Columbidae sp.
    # Count: 1
    Date:
    Observer: Frank and Nancy Hatch
    Location: Denver - Home WG Denver
  86. Loggerhead/Northern Shrike Lanius ludovicianus/borealis
    # Count: 1
    Date:
    Observer: Frank and Nancy Hatch
    Location: Denver - Home WG Denver
  87. new world sparrow sp. Passerellidae sp.
    # Count: 2
    Date:
    Observer: Frank and Nancy Hatch
    Location: Denver - Home WG Denver
  88. blackbird sp. Icteridae sp.
    # Count: 3
    Date:
    Observer: Frank and Nancy Hatch
    Location: Denver - Home WG Denver
  89. passerine sp. Passeriformes sp.
    # Count: 3
    Date:
    Observer: Frank and Nancy Hatch
    Location: Denver - Home WG Denver
  90. goose sp. Anatidae (goose sp.)
    # Count: 40
    Date:
    Observer: Anonymous eBirder
    Location: Boyd Lake Larimer
  91. duck sp. Anatidae (duck sp.)
    # Count: 170
    Date:
    Observer: Renu Carroll
    Location: Big Johnson Reservoir & Bluestem Prairie Open Space El Paso
  92. Cackling/Canada Goose Branta hutchinsii/canadensis
    # Count: X
    Date:
    Observer: Luciana L.
    Location: Monte Vista NWR--Alamosa CR 8 S viewing area Rio Grande
  93. gull sp. Larinae sp.
    # Count: 1
    Date:
    Observer: Kenyon Moon
    Location: balcony Denver
  94. hawk sp. Accipitridae sp. (hawk sp.)
    # Count: 1
    Date:
    Observer: David McQuade
    Location: Waunita Hot Springs lek Gunnison