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Bird List

Updated ~16 hours ago
239 All Years 161 This Year 2024 109 This Month Jun 2024
Last Observed First Observed High Count

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  1. Species Name
    Count
    Date
    Observer
    Location

Native and Naturalized (239)

  1. Rivoli's Hummingbird Eugenes fulgens
    # Count: 1
    Date:
    Observer: Vic Zerbi
    Location: Aspen Center for Environmental Studies
  2. Golden-crowned Sparrow Zonotrichia atricapilla
    # Count: 1
    Date:
    Observer: Colorado Bird Records Committee
    Location: Aspen
  3. Long-tailed Duck Clangula hyemalis
    # Count: 1
    Date:
    Observer: Vic Zerbi
    Location: Ruedi Reservoir (Pitkin County)
  4. Northern Parula Setophaga americana
    # Count: 1
    Date:
    Observer: Larry Arnold
    Location: Private Neighborhood (General Location)
  5. Red-eyed Vireo Vireo olivaceus
    # Count: 1
    Date:
    Observer: Angela Holbrook
    Location: Colorado - Difficult Campground
  6. Curve-billed Thrasher Toxostoma curvirostre
    # Count: 1
    Date:
    Observer: Coen Dexter
    Location: Curve-billed Thrasher stake-out
  7. Red-necked Phalarope Phalaropus lobatus
    # Count: 90
    Date:
    Observer: Ernie Bradley
    Location: Snowmass Village Sewage Pond CO
  8. Ferruginous Hawk Buteo regalis
    # Count: 1
    Date:
    Observer: Kathy Mihm Dunning
    Location: Midway Pass Trail - Wilderness Boundary to Treeline
  9. Pacific Loon Gavia pacifica
    # Count: 1
    Date:
    Observer: Reid Greiner
    Location: Ruedi Reservoir (Pitkin County)
  10. Wilson's Phalarope Phalaropus tricolor
    # Count: 23
    Date:
    Observer: Rebecca Weiss
    Location: Aspen Center for Environmental Studies
  11. Common Loon Gavia immer
    # Count: 1
    Date:
    Observer: Carol Ortenzio
    Location: Ruedi Reservoir
  12. Blue Grosbeak Passerina caerulea
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Bus Barn Lane, Aspen, Colorado, US (39.191, -106.847)
  13. Baltimore Oriole Icterus galbula
    # Count: 1
    Date:
    Observer: Vic Zerbi
    Location: Thomas Road
  14. Chestnut-sided Warbler Setophaga pensylvanica
    # Count: 1
    Date:
    Observer: Anders Weiss
    Location: Home
  15. Black-necked Stilt Himantopus mexicanus
    # Count: 2
    Date:
    Observer: John Anderson
    Location: East Brush Creek Nature Trail and Ponds
  16. American Redstart Setophaga ruticilla
    # Count: 1
    Date:
    Observer: John Anderson
    Location: Woody Creek Rd (Pitkin CR 18)--Upper River Rd to Canyon Mouth
  17. Western Sandpiper Calidris mauri
    # Count: 80
    Date:
    Observer: John Anderson
    Location: Lost Man Loop Trail
  18. Black-crowned Night Heron Nycticorax nycticorax
    # Count: 1
    Date:
    Observer: Reed Gorner
    Location: Chapman Campground
  19. Blue-winged Warbler Vermivora cyanoptera
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Community Garden and Marolt Open Space, Aspen, Colorado, US (39.195, -106.835)
  20. Nashville Warbler Leiothlypis ruficapilla
    # Count: 1
    Date:
    Observer: John Anderson
    Location: Marolt Open Space
  21. Great Egret Ardea alba
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Northstar, Private Property, Aspen, Colorado, US
  22. Grasshopper Sparrow Ammodramus savannarum
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Aspen Meadows, Aspen, Colorado, US (39.202, -106.831)
  23. Horned Grebe Podiceps auritus
    # Count: 1
    Date:
    Observer: Vic Zerbi
    Location: Ruedi Reservoir (Pitkin County)
  24. Burrowing Owl Athene cunicularia
    # Count: 1
    Date:
    Observer: Rebecca Weiss
    Location: Aspen Golf Club, Aspen US-CO 39.20096, -106.84688
  25. Indigo Bunting Passerina cyanea
    # Count: 1
    Date:
    Observer: Vic Zerbi
    Location: East Brush Creek Nature Trail and Ponds
  26. American White Pelican Pelecanus erythrorhynchos
    # Count: 1
    Date:
    Observer: Vic Zerbi
    Location: Ruedi Reservoir (Pitkin County)
  27. Short-eared Owl Asio flammeus
    # Count: 1
    Date:
    Observer: Buzz Scher
    Location: Capitol Creek Rd (Pitkin CR 9)--Monastery Rd to Snowmass Creek Rd
  28. Common Redpoll Acanthis flammea
    # Count: 5
    Date:
    Observer: John Dreves
    Location: White River National Forest, Aspen US-CO (39.0873,-106.8124)
  29. Trumpeter Swan Cygnus buccinator
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Difficult Campground Road, Aspen, Colorado, US (39.148, -106.778)
  30. Black Swift Cypseloides niger
    # Count: 3
    Date:
    Observer: John Anderson
    Location: Maroon Lake area
  31. Boreal Owl Aegolius funereus
    # Count: 1
    Date:
    Observer: Nicholas Koebley
    Location: Maroon Lake area
  32. American Avocet Recurvirostra americana
    # Count: 6
    Date:
    Observer: Chris Daniels
    Location: Black Bess Day Use Area
  33. Long-billed Dowitcher Limnodromus scolopaceus
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: Independence Pass
  34. Baird's Sandpiper Calidris bairdii
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: Independence Pass
  35. Blue Jay Cyanocitta cristata
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: 420 Cemetery Lane, Aspen Golf Course, Colorado, US (39.197, -106.835)
  36. Barrow's Goldeneye Bucephala islandica
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Ruedi Reservoir, Meredith US-CO 39.36144, -106.77805
  37. Red-breasted Merganser Mergus serrator
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: East Brush Creek Nature Trail and Ponds
  38. Swamp Sparrow Melospiza georgiana
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: East Brush Creek Nature Trail and Ponds
  39. White-throated Sparrow Zonotrichia albicollis
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Yard, Aspen, Colorado, US (39.189, -106.809)
  40. Rough-legged Hawk Buteo lagopus
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: 4001–4327 SH-133, Carbondale US-CO 39.36431, -107.20346
  41. Cackling Goose Branta hutchinsii
    # Count: 12
    Date:
    Observer: Dick Filby
    Location: Highway133 Pitkin County Line to KOA
  42. American Tree Sparrow Spizelloides arborea
    # Count: 6
    Date:
    Observer: Bryan Gieszl
    Location: 1885–3303 Capitol Creek Rd, Snowmass US-CO 39.29222, -107.01224
  43. Lesser Yellowlegs Tringa flavipes
    # Count: 2
    Date:
    Observer: Catherine Hagen
    Location: East Brush Creek Nature Trail and Ponds
  44. Greater White-fronted Goose Anser albifrons
    # Count: 1
    Date:
    Observer: Matt Kuhn
    Location: East Brush Creek Nature Trail and Ponds
  45. Redhead Aythya americana
    # Count: 1
    Date:
    Observer: Liz Bokram
    Location: 2759 County Road 12, Aspen, Colorado, US (39.212, -106.901) (Private)
  46. Forster's Tern Sterna forsteri
    # Count: 9
    Date:
    Observer: Bryan Gieszl
    Location: Ruedi Reservoir (Pitkin County)
  47. Juniper Titmouse Baeolophus ridgwayi
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Fairview Cemetery (Basalt)
  48. Common Poorwill Phalaenoptilus nuttallii
    # Count: 1
    Date:
    Observer: sage church
    Location: 81621, Basalt US-CO 39.36602, -107.11184
  49. Swainson's Hawk Buteo swainsoni
    # Count: 1
    Date:
    Observer: Chris Nabel
    Location: Northstar Preserve, East Aspen trail
  50. California Gull Larus californicus
    # Count: 1
    Date:
    Observer: daisy debelle
    Location: Champion Mill, Colorado, US (39.108, -106.564)
  51. Veery Catharus fuscescens
    # Count: 1
    Date:
    Observer: Christian Nunes
    Location: Maroon Lake Scenic Trail, Aspen US-CO (39.0979,-106.9443)
  52. Pacific Wren Troglodytes pacificus
    # Count: 1
    Date:
    Observer: Jason Gregg
    Location: Lily Lake Trail
  53. Peregrine Falcon Falco peregrinus
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: 31336 SH-82, Aspen US-CO 39.29485, -106.92084
  54. Northern Waterthrush Parkesia noveboracensis
    # Count: 1
    Date:
    Observer: Edward Buckler
    Location: Aspen Center for Environmental Studies
  55. Solitary Sandpiper Tringa solitaria
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Ruedi Reservoir (Pitkin County)
  56. Lark Bunting Calamospiza melanocorys
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Meadows Rd trails
  57. Least Sandpiper Calidris minutilla
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Independence Pass
  58. White-faced Ibis Plegadis chihi
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Independence Pass
  59. Gray Flycatcher Empidonax wrightii
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: Black Bess Day Use Area
  60. Canyon Wren Catherpes mexicanus
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Rocky Fork, Meredith US-CO 39.35819, -106.82043
  61. Calliope Hummingbird Selasphorus calliope
    # Count: 2
    Date:
    Observer: Elizabeth Tighe-Andino
    Location: 685 East Durant Avenue, Aspen, Colorado, US (39.186, -106.818)
  62. Northern Pintail Anas acuta
    # Count: 3
    Date:
    Observer: Chris Daniels
    Location: Black Bess Day Use Area
  63. Cassin's Vireo Vireo cassinii
    # Count: 2
    Date:
    Observer: Chris Daniels
    Location: Marolt Open Space
  64. Yellow-headed Blackbird Xanthocephalus xanthocephalus
    # Count: 2
    Date:
    Observer: Rebecca Weiss
    Location: East Brush Creek Nature Trail and Ponds
  65. Sage Thrasher Oreoscoptes montanus
    # Count: 2
    Date:
    Observer: Bryan Gieszl
    Location: Moore Open Space
  66. Yellow-breasted Chat Icteria virens
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: East Brush Creek Nature Trail and Ponds
  67. Rose-breasted Grosbeak Pheucticus ludovicianus
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  68. Rufous Hummingbird Selasphorus rufus
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Yard, Aspen, Colorado, US (39.189, -106.809)
  69. Clay-colored Sparrow Spizella pallida
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Chapman Campground
  70. Common Yellowthroat Geothlypis trichas
    # Count: 2
    Date:
    Observer: Dina Baker
    Location: East Brush Creek Nature Trail and Ponds
  71. Western Bluebird Sialia mexicana
    # Count: 1
    Date:
    Observer: Christian Nunes
    Location: Snowmass, Snowmass Village US-CO 39.20622, -106.95346
  72. Townsend's Warbler Setophaga townsendi
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: Chris’ House
  73. Prairie Falcon Falco mexicanus
    # Count: 1
    Date:
    Observer: Eric Sorenson
    Location: Coal Basin Ranch
  74. Wood Duck Aix sponsa
    # Count: 2
    Date:
    Observer: Rebecca Weiss
    Location: Aspen Center for Environmental Studies
  75. Snow Goose Anser caerulescens
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: The Snowmass Club, Snowmass Village US-CO 39.22306, -106.92634
  76. Ruddy Duck Oxyura jamaicensis
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: East Brush Creek Nature Trail and Ponds
  77. Common Goldeneye Bucephala clangula
    # Count: 12
    Date:
    Observer: Chris Daniels
    Location: 18402–18922 Frying Pan Rd, Meredith US-CO (39.3621,-106.7581)
  78. Merlin Falco columbarius
    # Count: 1
    Date:
    Observer: Dick Filby
    Location: 425 Gerbaz Way, Snowmass, Colorado, US (39.299, -106.919)
  79. Pinyon Jay Gymnorhinus cyanocephalus
    # Count: 30
    Date:
    Observer: Dick Filby
    Location: 201 Colorado 82, Basalt, Colorado, US (39.364, -107.035)
  80. Bohemian Waxwing Bombycilla garrulus
    # Count: 15
    Date:
    Observer: Bryan Gieszl
    Location: Pond in Fox Run subdivision
  81. Cassia Crossbill Loxia sinesciuris
    # Count: 6
    Date:
    Observer: Chris Daniels
    Location: Government Trail
  82. Northern Pygmy-Owl Glaucidium gnoma
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: White River National Forest, Snowmass Village US-CO 39.19666, -106.93037
  83. Mexican Duck Anas diazi
    # Count: 1
    Date:
    Observer: Nathan Pieplow
    Location: Aspen Mass Open Space
  84. Northern Saw-whet Owl Aegolius acadicus
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: Independence Pass Winter Closure Gate
  85. Northern Shrike Lanius borealis
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: 1200–1332 Owl Creek Rd, Aspen US-CO (39.2209,-106.8739)
  86. Common Grackle Quiscalus quiscula
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  87. Ring-billed Gull Larus delawarensis
    # Count: 3
    Date:
    Observer: Bryan Gieszl
    Location: East Brush Creek Nature Trail and Ponds
  88. Greater Yellowlegs Tringa melanoleuca
    # Count: 2
    Date:
    Observer: Rebecca Weiss
    Location: East Brush Creek Nature Trail and Ponds
  89. Lesser Scaup Aythya affinis
    # Count: 4
    Date:
    Observer: Chris Daniels
    Location: East Brush Creek Nature Trail and Ponds
  90. Brown Creeper Certhia americana
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: 39.181945, -106.876074 Aspen, CO 816
  91. Double-crested Cormorant Nannopterum auritum
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: 132 Emma Rd, Basalt US-CO 39.36399, -107.03417
  92. Cinnamon Teal Spatula cyanoptera
    # Count: 2
    Date:
    Observer: Bryan Gieszl
    Location: Ruedi Reservoir (Pitkin County)
  93. Virginia Rail Rallus limicola
    # Count: 3
    Date:
    Observer: Bryan Gieszl
    Location: Emma Open Space
  94. Green-winged Teal Anas crecca
    # Count: 4
    Date:
    Observer: Chris Daniels
    Location: Black Bess Day Use Area
  95. Bufflehead Bucephala albeola
    # Count: 2
    Date:
    Observer: Chris Daniels
    Location: Black Bess Day Use Area
  96. Willet Tringa semipalmata
    # Count: 6
    Date:
    Observer: Chris Daniels
    Location: Black Bess Day Use Area
  97. Loggerhead Shrike Lanius ludovicianus
    # Count: 1
    Date:
    Observer: Barry Mink
    Location: Brush Creek Co
  98. Hooded Merganser Lophodytes cucullatus
    # Count: 7
    Date:
    Observer: Liz Bokram
    Location: Lake Wildcat Way, Snowmass, Colorado, US (39.243, -106.953) Private
  99. Franklin's Gull Leucophaeus pipixcan
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: East Brush Creek Nature Trail and Ponds
  100. Lark Sparrow Chondestes grammacus
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Ruedi Reservoir (Pitkin County)
  101. Black Rosy-Finch Leucosticte atrata
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  102. Great Horned Owl Bubo virginianus
    # Count: 1
    Date:
    Observer: Matt Herndon
    Location: McLain Flats Rd, Aspen US-CO (39.2247,-106.8546)
  103. Northern Shoveler Spatula clypeata
    # Count: 1
    Date:
    Observer: Phebe Meyers
    Location: Aspen Center for Environmental Studies
  104. Harris's Sparrow Zonotrichia querula
    # Count: 1
    Date:
    Observer: George Waaler
    Location: 478 Oak Ridge Rd, Snowmass Village US-CO 39.22804, -106.93214
  105. Blue-winged Teal Spatula discors
    # Count: 1
    Date:
    Observer: Phebe Meyers
    Location: Aspen Center for Environmental Studies
  106. Pied-billed Grebe Podilymbus podiceps
    # Count: 1
    Date:
    Observer: Phebe Meyers
    Location: Aspen Center for Environmental Studies
  107. Bank Swallow Riparia riparia
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: East Brush Creek Nature Trail and Ponds
  108. Band-tailed Pigeon Patagioenas fasciata
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  109. Northern Mockingbird Mimus polyglottos
    # Count: 1
    Date:
    Observer: Jim Prall
    Location: John Denver Sanctuary
  110. Marsh Wren Cistothorus palustris
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: The Snowmass Club, Snowmass Village US-CO 39.22306, -106.92634
  111. Red Crossbill Loxia curvirostra
    # Count: 1
    Date:
    Observer: Rebecca Weiss
    Location: Radar Rd, Aspen US-CO 39.22431, -106.87293
  112. American Wigeon Mareca americana
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  113. Killdeer Charadrius vociferus
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  114. Ash-throated Flycatcher Myiarchus cinerascens
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Fairview Cemetery (Basalt)
  115. Northern Harrier Circus hudsonius
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: The Snowmass Club, Snowmass Village US-CO (39.2154,-106.9283)
  116. Gray-crowned Rosy-Finch Leucosticte tephrocotis
    # Count: 2
    Date:
    Observer: Jude Stradtner
    Location: Dooley Creek Farm (PRIVATE PROPERTY, NO PUBLIC ACCESS)
  117. Common Merganser Mergus merganser
    # Count: 2
    Date:
    Observer: Bryan Gieszl
    Location: Ruedi Reservoir (Pitkin County)
  118. Eared Grebe Podiceps nigricollis
    # Count: 2
    Date:
    Observer: Bryan Gieszl
    Location: Ruedi Reservoir (Pitkin County)
  119. Western Grebe Aechmophorus occidentalis
    # Count: 3
    Date:
    Observer: Bryan Gieszl
    Location: Ruedi Reservoir (Pitkin County)
  120. American Coot Fulica americana
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Snowmass Rodeo wetlands
  121. Eastern Kingbird Tyrannus tyrannus
    # Count: 1
    Date:
    Observer: Matt Blaze
    Location: John Denver Meadowlands
  122. Brown-capped Rosy-Finch Leucosticte australis
    # Count: 120
    Date:
    Observer: Bryan Gieszl
    Location: Home
  123. Barn Swallow Hirundo rustica
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Windstar Ranch Loop Trail
  124. Bald Eagle Haliaeetus leucocephalus
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: East Sopris Creek Rd--Snowmass Creek Rd to Bear Ridge Rd
  125. Bushtit Psaltriparus minimus
    # Count: 4
    Date:
    Observer: Bryan Gieszl
    Location: East Sopris Creek Rd--Snowmass Creek Rd to Bear Ridge Rd
  126. Flammulated Owl Psiloscops flammeolus
    # Count: 3
    Date:
    Observer: Chris Daniels
    Location: Sunnyside Trail, Aspen US-CO 39.22893, -106.82680
  127. Golden-crowned Kinglet Regulus satrapa
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Difficult Campground
  128. Northern Rough-winged Swallow Stelgidopteryx serripennis
    # Count: 4
    Date:
    Observer: George Waaler
    Location: Avalanche Creek
  129. American Three-toed Woodpecker Picoides dorsalis
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: Difficult Campground
  130. Purple Martin Progne subis
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  131. Sandhill Crane Antigone canadensis
    # Count: 3
    Date:
    Observer: Michael Emenaker
    Location: Emma Rd, Basalt US-CO 39.36581, -107.04803
  132. American Kestrel Falco sparverius
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Rio Grande Trail--Jaffee Park to Gerbaz Way Bridge
  133. Brewer's Blackbird Euphagus cyanocephalus
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Rio Grande Trail--Jaffee Park to Gerbaz Way Bridge
  134. American Pipit Anthus rubescens
    # Count: 1
    Date:
    Observer: Kim Potter
    Location: Conundrum Creek Trail, Aspen US-CO 39.09839, -106.86185
  135. Rock Pigeon Columba livia
    # Count: 1
    Date:
    Observer: Annie Downing
    Location: 427 Rio Grande Pl, Aspen US-CO 39.19108, -106.81813
  136. Wild Turkey Meleagris gallopavo
    # Count: 1
    Date:
    Observer: Liz Bokram
    Location: Difficult Campground
  137. White-tailed Ptarmigan Lagopus leucura
    # Count: 3
    Date:
    Observer: Kim Potter
    Location: Conundrum Hot Springs
  138. Canada Jay Perisoreus canadensis
    # Count: 2
    Date:
    Observer: Kim Potter
    Location: Conundrum Hot Springs
  139. Pine Grosbeak Pinicola enucleator
    # Count: 2
    Date:
    Observer: Kim Potter
    Location: Conundrum Hot Springs
  140. Dusky Grouse Dendragapus obscurus
    # Count: 1
    Date:
    Observer: David Suddjian
    Location: Pitkin - Coal Creek Rd
  141. Downy Woodpecker Dryobates pubescens
    # Count: 1
    Date:
    Observer: David Suddjian
    Location: Pitkin - Coal Creek Rd
  142. Willow Flycatcher Empidonax traillii
    # Count: 1
    Date:
    Observer: David Suddjian
    Location: Pitkin - Coal Creek Rd
  143. Lesser Goldfinch Spinus psaltria
    # Count: 1
    Date:
    Observer: David Suddjian
    Location: Pitkin - Coal Creek Rd
  144. Evening Grosbeak Coccothraustes vespertinus
    # Count: 3
    Date:
    Observer: David Suddjian
    Location: Redstone (town)
  145. Williamson's Sapsucker Sphyrapicus thyroideus
    # Count: 1
    Date:
    Observer: David Suddjian
    Location: Avalanche Creek
  146. Rock Wren Salpinctes obsoletus
    # Count: 1
    Date:
    Observer: David Suddjian
    Location: Avalanche Creek
  147. Black-throated Gray Warbler Setophaga nigrescens
    # Count: 1
    Date:
    Observer: David Suddjian
    Location: Avalanche Creek
  148. Cooper's Hawk Accipiter cooperii
    # Count: 1
    Date:
    Observer: David Suddjian
    Location: Pitkin - Prince Creek Road from Pitkin line to end of pavement
  149. Lewis's Woodpecker Melanerpes lewis
    # Count: 1
    Date:
    Observer: David Suddjian
    Location: Pitkin - Prince Creek Road from Pitkin line to end of pavement
  150. Say's Phoebe Sayornis saya
    # Count: 1
    Date:
    Observer: David Suddjian
    Location: Pitkin - Prince Creek Road from Pitkin line to end of pavement
  151. Western Kingbird Tyrannus verticalis
    # Count: 1
    Date:
    Observer: David Suddjian
    Location: Prince Creek Road from end of pavement to Public lands boundary
  152. Mourning Dove Zenaida macroura
    # Count: 2
    Date:
    Observer: David Suddjian
    Location: 342 W Sopris Creek Rd, Basalt US-CO 39.34905, -107.06540
  153. Hairy Woodpecker Dryobates villosus
    # Count: 2
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  154. Swainson's Thrush Catharus ustulatus
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  155. Blue-gray Gnatcatcher Polioptila caerulea
    # Count: 1
    Date:
    Observer: Barry Mink
    Location: Brush Creek Co
  156. Sharp-shinned Hawk Accipiter striatus
    # Count: 1
    Date:
    Observer: Grant Hokit
    Location: McClure Pass
  157. Lazuli Bunting Passerina amoena
    # Count: 1
    Date:
    Observer: Jack Small
    Location: Snowmass Village--Rim Trail
  158. Western Wood-Pewee Contopus sordidulus
    # Count: 1
    Date:
    Observer: Lauren Offringa
    Location: Dinkle Lake
  159. Red-breasted Nuthatch Sitta canadensis
    # Count: 1
    Date:
    Observer: Lauren Offringa
    Location: Dinkle Lake
  160. Sora Porzana carolina
    # Count: 1
    Date:
    Observer: Rebecca Weiss
    Location: Northstar, Private Property, Aspen, Colorado, US
  161. Wilson's Snipe Gallinago delicata
    # Count: 3
    Date:
    Observer: Rebecca Weiss
    Location: Northstar, Private Property, Aspen, Colorado, US
  162. Olive-sided Flycatcher Contopus cooperi
    # Count: 1
    Date:
    Observer: Brooke Keeney
    Location: Aspen Mountain
  163. Fox Sparrow Passerella iliaca
    # Count: 3
    Date:
    Observer: Bryan Gieszl
    Location: Aspen Center for Environmental Studies
  164. Cedar Waxwing Bombycilla cedrorum
    # Count: 3
    Date:
    Observer: Bryan Gieszl
    Location: Moore Open Space
  165. Virginia's Warbler Leiothlypis virginiae
    # Count: 1
    Date:
    Observer: Ginny Keeling
    Location: Avalanche Creek
  166. Western Tanager Piranga ludoviciana
    # Count: 2
    Date:
    Observer: Ginny Keeling
    Location: Avalanche Creek
  167. Red-naped Sapsucker Sphyrapicus nuchalis
    # Count: 2
    Date:
    Observer: Ginny Keeling
    Location: Redstone (town)
  168. Gray Catbird Dumetella carolinensis
    # Count: 1
    Date:
    Observer: Ginny Keeling
    Location: Redstone (town)
  169. Cliff Swallow Petrochelidon pyrrhonota
    # Count: 1
    Date:
    Observer: David Schulte
    Location: Inn at aspen
  170. Eurasian Collared-Dove Streptopelia decaocto
    # Count: 2
    Date:
    Observer: Lisa Ayres
    Location: 200 Elk Run Dr, Basalt US-CO 39.36234, -107.02690
  171. Belted Kingfisher Megaceryle alcyon
    # Count: 1
    Date:
    Observer: David Schulte
    Location: Aspen Center for Environmental Studies
  172. Cassin's Finch Haemorhous cassinii
    # Count: X
    Date:
    Observer: Adam Wilhite
    Location: John Denver Sanctuary
  173. Gadwall Mareca strepera
    # Count: 2
    Date:
    Observer: Liz Bokram
    Location: Wildcat Way, Snowmass, Colorado, US (39.283, -106.906) (Private)
  174. Ring-necked Duck Aythya collaris
    # Count: 4
    Date:
    Observer: Liz Bokram
    Location: Wildcat Way, Snowmass, Colorado, US (39.283, -106.906) (Private)
  175. Black-chinned Hummingbird Archilochus alexandri
    # Count: 1
    Date:
    Observer: Liz Bokram
    Location: Wildcat Way, Snowmass, Colorado, US (39.283, -106.906) (Private)
  176. Vesper Sparrow Pooecetes gramineus
    # Count: 2
    Date:
    Observer: Liz Bokram
    Location: Wildcat Way, Snowmass, Colorado, US (39.283, -106.906) (Private)
  177. Plumbeous Vireo Vireo plumbeus
    # Count: 3
    Date:
    Observer: Norman Erthal
    Location: Unnamed Road, Carbondale, Colorado, US (39.344, -107.289)
  178. Brewer's Sparrow Spizella breweri
    # Count: 1
    Date:
    Observer: Norman Erthal
    Location: Unnamed Road, Carbondale, Colorado, US (39.344, -107.289)
  179. White-throated Swift Aeronautes saxatalis
    # Count: 4
    Date:
    Observer: Norman Erthal
    Location: Colorado 133, Carbondale, Colorado, US (39.232, -107.227)
  180. Bullock's Oriole Icterus bullockii
    # Count: 2
    Date:
    Observer: Norman Erthal
    Location: Emma Open Space
  181. Red-tailed Hawk Buteo jamaicensis
    # Count: 1
    Date:
    Observer: Liz Bokram
    Location: Owl Creek Ranch (Private)(39.212, -106.887)
  182. European Starling Sturnus vulgaris
    # Count: 1
    Date:
    Observer: Liz Bokram
    Location: Owl Creek Ranch (Private)(39.212, -106.887)
  183. House Finch Haemorhous mexicanus
    # Count: 4
    Date:
    Observer: Liz Bokram
    Location: Owl Creek Ranch (Private)(39.212, -106.887)
  184. Savannah Sparrow Passerculus sandwichensis
    # Count: 3
    Date:
    Observer: Liz Bokram
    Location: Owl Creek Ranch (Private)(39.212, -106.887)
  185. Western Meadowlark Sturnella neglecta
    # Count: 1
    Date:
    Observer: Liz Bokram
    Location: Owl Creek Ranch (Private)(39.212, -106.887)
  186. House Sparrow Passer domesticus
    # Count: 3
    Date:
    Observer: Jennifer Percival
    Location: John Denver Sanctuary
  187. Common Raven Corvus corax
    # Count: 8
    Date:
    Observer: Chancellor Fortenberry
    Location: Triangle Peak
  188. Orange-crowned Warbler Leiothlypis celata
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  189. American Goshawk Accipiter atricapillus
    # Count: 1
    Date:
    Observer: Aaron Dubas
    Location: Independence Pass
  190. Dusky Flycatcher Empidonax oberholseri
    # Count: 2
    Date:
    Observer: Aaron Dubas
    Location: Independence Pass
  191. Steller's Jay Cyanocitta stelleri
    # Count: 1
    Date:
    Observer: Aaron Dubas
    Location: Independence Pass
  192. Clark's Nutcracker Nucifraga columbiana
    # Count: 2
    Date:
    Observer: Aaron Dubas
    Location: Independence Pass
  193. Horned Lark Eremophila alpestris
    # Count: 2
    Date:
    Observer: Aaron Dubas
    Location: Independence Pass
  194. Mountain Bluebird Sialia currucoides
    # Count: 1
    Date:
    Observer: Aaron Dubas
    Location: Independence Pass
  195. Townsend's Solitaire Myadestes townsendi
    # Count: 1
    Date:
    Observer: Aaron Dubas
    Location: Independence Pass
  196. Hermit Thrush Catharus guttatus
    # Count: 1
    Date:
    Observer: Aaron Dubas
    Location: Independence Pass
  197. Turkey Vulture Cathartes aura
    # Count: 1
    Date:
    Observer: Barry Mink
    Location: Brush Creek Co
  198. Canada Goose Branta canadensis
    # Count: 12
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  199. Mallard Anas platyrhynchos
    # Count: 4
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  200. Spotted Sandpiper Actitis macularius
    # Count: 2
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  201. Osprey Pandion haliaetus
    # Count: 2
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  202. Ruby-crowned Kinglet Corthylio calendula
    # Count: 5
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  203. White-breasted Nuthatch Sitta carolinensis
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  204. Pine Siskin Spinus pinus
    # Count: 3
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  205. American Goldfinch Spinus tristis
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  206. Dark-eyed Junco Junco hyemalis
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  207. Song Sparrow Melospiza melodia
    # Count: 3
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  208. Red-winged Blackbird Agelaius phoeniceus
    # Count: 5
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  209. Brown-headed Cowbird Molothrus ater
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  210. Golden Eagle Aquila chrysaetos
    # Count: 1
    Date:
    Observer: Carly Crow
    Location: Independence Pass
  211. White-crowned Sparrow Zonotrichia leucophrys
    # Count: 1
    Date:
    Observer: Carly Crow
    Location: Independence Pass
  212. Lincoln's Sparrow Melospiza lincolnii
    # Count: 2
    Date:
    Observer: Carly Crow
    Location: Independence Pass
  213. Wilson's Warbler Cardellina pusilla
    # Count: 6
    Date:
    Observer: Carly Crow
    Location: Independence Pass
  214. Pygmy Nuthatch Sitta pygmaea
    # Count: X
    Date:
    Observer: Adam Wilhite
    Location: Aspen Center for Environmental Studies
  215. Common Nighthawk Chordeiles minor
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  216. Great Blue Heron Ardea herodias
    # Count: 1
    Date:
    Observer: Adam Wilhite
    Location: Aspen Center for Environmental Studies
  217. Hammond's Flycatcher Empidonax hammondii
    # Count: 1
    Date:
    Observer: Adam Wilhite
    Location: Aspen Center for Environmental Studies
  218. Western Flycatcher Empidonax difficilis
    # Count: X
    Date:
    Observer: Adam Wilhite
    Location: Aspen Center for Environmental Studies
  219. American Dipper Cinclus mexicanus
    # Count: 2
    Date:
    Observer: Adam Wilhite
    Location: Aspen Center for Environmental Studies
  220. Yellow-rumped Warbler Setophaga coronata
    # Count: X
    Date:
    Observer: Adam Wilhite
    Location: Aspen Center for Environmental Studies
  221. Broad-tailed Hummingbird Selasphorus platycercus
    # Count: 6
    Date:
    Observer: Bryan Gieszl
    Location: Home
  222. Northern Flicker Colaptes auratus
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  223. Warbling Vireo Vireo gilvus
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  224. Woodhouse's Scrub-Jay Aphelocoma woodhouseii
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  225. Black-billed Magpie Pica hudsonia
    # Count: 3
    Date:
    Observer: Bryan Gieszl
    Location: Home
  226. American Crow Corvus brachyrhynchos
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  227. Black-capped Chickadee Poecile atricapillus
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  228. Mountain Chickadee Poecile gambeli
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  229. Tree Swallow Tachycineta bicolor
    # Count: 2
    Date:
    Observer: Bryan Gieszl
    Location: Home
  230. Violet-green Swallow Tachycineta thalassina
    # Count: 2
    Date:
    Observer: Bryan Gieszl
    Location: Home
  231. House Wren Troglodytes aedon
    # Count: 2
    Date:
    Observer: Bryan Gieszl
    Location: Home
  232. American Robin Turdus migratorius
    # Count: 3
    Date:
    Observer: Bryan Gieszl
    Location: Home
  233. Chipping Sparrow Spizella passerina
    # Count: 2
    Date:
    Observer: Bryan Gieszl
    Location: Home
  234. Green-tailed Towhee Pipilo chlorurus
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  235. Spotted Towhee Pipilo maculatus
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  236. MacGillivray's Warbler Geothlypis tolmiei
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  237. Yellow Warbler Setophaga petechia
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  238. Black-headed Grosbeak Pheucticus melanocephalus
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  239. Long-eared Owl Asio otus
    # Count: 1

Exotic: Escapee (2)

  1. Mute Swan Cygnus olor
    # Count: 1
    Date:
    Observer: Narca Moore
    Location: US-CO-Pitkin—Aspen - bike trail to Northstar Preserve
  2. Chukar Alectoris chukar
    # Count: 8
    Date:
    Observer: Christopher Skelton
    Location: 25427-25787 Colorado 82, Aspen, Colorado, US (39.179, -106.801)

Additional Taxa (74)

  1. Pacific/Winter Wren Troglodytes pacificus/hiemalis
    # Count: 1
    Date:
    Observer: Steven Mlodinow
    Location: Snowmass
  2. Spizella sp./American Tree Sparrow Spizella/Spizelloides sp.
    # Count: 2
    Date:
    Observer: Tamas Zeke
    Location: Snowmass Village--Ditch Trail
  3. Ruby-throated/Black-chinned Hummingbird Archilochus colubris/alexandri
    # Count: 1
    Date:
    Observer: Tamas Zeke
    Location: Snowmass Village--Rim Trail
  4. Spinus sp. Spinus sp.
    # Count: 4
    Date:
    Observer: Jake Shorty
    Location: Rio Grande Trail--Gerbaz Way Bridge to Snowmass
  5. Greater/Lesser Scaup Aythya marila/affinis
    # Count: 3
    Date:
    Observer: Ernie Bradley
    Location: Placita River Bottoms CO
  6. grackle sp. Quiscalus sp.
    # Count: 1
    Date:
    Observer: Jason Gregg
    Location: Meadowood meadow
  7. chickadee sp. Poecile sp.
    # Count: 1
    Date:
    Observer: Jason Gregg
    Location: Aspen Center for Environmental Studies
  8. Cassin's/Plumbeous Vireo Vireo cassinii/plumbeus
    # Count: 1
    Date:
    Observer: Dan Stone
    Location: St. Benedict's Monastery
  9. vireo sp. Vireo sp.
    # Count: 1
    Date:
    Observer: Madalynn Connor
    Location: Prince Creek Road, Pitkin County, County Road 5, Carbondale, Colorado, US (39.356, -107.173)
  10. falcon sp. Falco sp.
    # Count: 1
    Date:
    Observer: Phebe Meyers
    Location: White River National Forest, Aspen US-CO (39.1840,-106.8253)
  11. Rose-breasted/Black-headed Grosbeak Pheucticus ludovicianus/melanocephalus
    # Count: 1
    Date:
    Observer: Anthony Ferraro Jr
    Location: Woody Creek Rd (Pitkin CR 18)--Upper River Rd to Canyon Mouth
  12. owl sp. Strigiformes sp.
    # Count: 1
    Date:
    Observer: Rebecca Weiss
    Location: Midway P Tr, above ponds on ridge
  13. Selasphorus sp. Selasphorus sp.
    # Count: 1
    Date:
    Observer: Aaron Brees
    Location: West Maroon Creek--trail from Crater Lake toward West Maroon Pass
  14. Bohemian/Cedar Waxwing Bombycilla garrulus/cedrorum
    # Count: 14
    Date:
    Observer: Michael Stein
    Location: Aspen Center for Environmental Studies
  15. pewee sp. (Contopus sp.) Contopus sp.
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Northstar Preserve, East Aspen trail
  16. Snow/Ross's Goose Anser caerulescens/rossii
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Ruedi Reservoir (Pitkin County)
  17. Horned/Eared Grebe Podiceps auritus/nigricollis
    # Count: 2
    Date:
    Observer: JoAnn Potter Riggle 🦤
    Location: Ruedi Inlet area
  18. new world goldfinch sp. Spinus sp. (goldfinch sp.)
    # Count: 4
    Date:
    Observer: Jason Gregg
    Location: Aspen Center for Environmental Studies
  19. Western/Clark's Grebe Aechmophorus occidentalis/clarkii
    # Count: 2
    Date:
    Observer: Bryan Gieszl
    Location: Ruedi Reservoir (Pitkin County)
  20. bird sp. Aves sp.
    # Count: 1
    Date:
    Observer: Jake Glassman
    Location: Prince Creek Rd, Basalt US-CO (39.3363,-107.1548)
  21. Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/traillii
    # Count: X
    Date:
    Observer: Justin Leahy
    Location: Redstone (town)
  22. Catharus sp. Catharus sp.
    # Count: 1
    Date:
    Observer: Nathan Goldberg
    Location: Rio Grande Trail--Herron Park to Cemetery Lane Bridge
  23. nuthatch sp. Sitta sp.
    # Count: 1
    Date:
    Observer: Mark Lang
    Location: Chapman Campground
  24. Lazuli/Indigo Bunting Passerina amoena/cyanea
    # Count: 2
    Date:
    Observer: Bryan Gieszl
    Location: East Brush Creek Nature Trail and Ponds
  25. sapsucker sp. Sphyrapicus sp.
    # Count: 1
    Date:
    Observer: David Suddjian
    Location: Difficult Campground
  26. California/Woodhouse's Scrub-Jay Aphelocoma californica/woodhouseii
    # Count: 1
    Date:
    Observer: Barry Mink
    Location: Aspen
  27. raven sp. Corvus sp. (raven sp.)
    # Count: 1
    Date:
    Observer: Barry Mink
    Location: Aspen
  28. large falcon sp. Falco sp. (large falcon sp.)
    # Count: 1
    Date:
    Observer: Rebecca Weiss
    Location: Upper Lost Man Trail
  29. Common/Barrow's Goldeneye Bucephala clangula/islandica
    # Count: 3
    Date:
    Observer: John Anderson
    Location: Capitol Creek Rd (Pitkin CR 9)--Monastery Rd to Snowmass Creek Rd
  30. Golden/Bald Eagle Aquila chrysaetos/Haliaeetus leucocephalus
    # Count: 1
    Date:
    Observer: Mary Djurovic
    Location: High Alpine
  31. gull sp. Larinae sp.
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: 27637–27845 SH-82 W, Snowmass US-CO 39.31730, -106.94091
  32. peep sp. Calidris sp. (peep sp.)
    # Count: 1
    Date:
    Observer: Lisa Ayres
    Location: Marolt Open Space
  33. diurnal raptor sp. Accipitriformes/Falconiformes sp.
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Northstar Preserve, East Aspen trail
  34. pigeon/dove sp. Columbidae sp.
    # Count: 1
    Date:
    Observer: Joan Larrabee
    Location: Aspen Mountain
  35. Buteo/eagle sp. Buteo/eagle sp.
    # Count: 1
    Date:
    Observer: Sameer Apte
    Location: Aspen Highlands
  36. Setophaga sp. Setophaga sp.
    # Count: 1
    Date:
    Observer: Sameer Apte
    Location: Capitol Creek Rd (Pitkin CR 9)--Monastery Rd to Snowmass Creek Rd
  37. swift sp. Apodidae sp.
    # Count: 3
    Date:
    Observer: Janet Gallenstein
    Location: Redstone (town)
  38. teal sp. Anatidae sp. (teal sp.)
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: East Brush Creek Nature Trail and Ponds
  39. Yellow-bellied/Red-naped Sapsucker Sphyrapicus varius/nuchalis
    # Count: 2
    Date:
    Observer: Jon Webb
    Location: Avalanche Ranch
  40. Buteo sp. Buteo sp.
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Meadows Trail, Aspen, Colorado, US (39.201, -106.832)
  41. Spizella sp. Spizella sp.
    # Count: 6
    Date:
    Observer: Rebecca Weiss
    Location: Marolt Open Space
  42. blackbird sp. Icteridae sp.
    # Count: 45
    Date:
    Observer: Rebecca Weiss
    Location: Marolt Open Space
  43. Red/Cassia Crossbill Loxia curvirostra/sinesciuris
    # Count: 1
    Date:
    Observer: Dick Filby
    Location: Chapman Campground
  44. goose sp. Anatidae (goose sp.)
    # Count: 1
    Date:
    Observer: Rebecca Weiss
    Location: Northstar, Private Property, Aspen, Colorado, US
  45. towhee sp. Melozone/Pipilo sp.
    # Count: 2
    Date:
    Observer: sage church
    Location: 81623, Carbondale US-CO 39.35293, -107.14183
  46. crow/raven sp. Corvus sp.
    # Count: 4
    Date:
    Observer: Kelly Ducham
    Location: 18 Hidden Ln, Snowmass Village US-CO 39.20342, -106.94623
  47. Rufous/Allen's Hummingbird Selasphorus rufus/sasin
    # Count: 1
    Date:
    Observer: Barry Mink
    Location: Brush Creek Co
  48. Hammond's/Dusky Flycatcher Empidonax hammondii/oberholseri
    # Count: 1
    Date:
    Observer: Theo Bockhorst
    Location: Cathedral Lake Rd, Aspen US-CO 39.04247, -106.80387
  49. new world flycatcher sp. Tyrannidae sp.
    # Count: 2
    Date:
    Observer: Jason Gregg
    Location: Aspen Center for Environmental Studies
  50. Blue-winged/Cinnamon Teal Spatula discors/cyanoptera
    # Count: 20
    Date:
    Observer: Bryan Gieszl
    Location: Ruedi Reservoir (Pitkin County)
  51. Glossy/White-faced Ibis Plegadis falcinellus/chihi
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Ruedi Reservoir (Pitkin County)
  52. Lesser/Greater Yellowlegs Tringa flavipes/melanoleuca
    # Count: 2
    Date:
    Observer: Dan Jones
    Location: Ruedi Reservoir (Pitkin County)
  53. shorebird sp. Charadriiformes sp.
    # Count: 1
    Date:
    Observer: Dan Jones
    Location: Ruedi Reservoir (Pitkin County)
  54. small falcon sp. Falco sp. (small falcon sp.)
    # Count: 1
    Date:
    Observer: Dan Jones
    Location: Ruedi Reservoir (Pitkin County)
  55. dabbling duck sp. Anatidae sp. (dabbling duck sp.)
    # Count: 30
    Date:
    Observer: Jack Bushong
    Location: Ruedi Reservoir (Pitkin County)
  56. Empidonax sp. Empidonax sp.
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Marolt Open Space
  57. Accipiter sp. Accipiter sp.
    # Count: 1
    Date:
    Observer: Rebecca Weiss
    Location: Moore Open Space
  58. duck sp. Anatidae (duck sp.)
    # Count: 2
    Date:
    Observer: Catherine Hagen
    Location: Community Garden, Aspen, Colorado, US (39.193, -106.836)
  59. wren sp. Troglodytidae sp.
    # Count: 1
    Date:
    Observer: Carolyn Corl
    Location: Redstone (town)
  60. new world warbler sp. Parulidae sp.
    # Count: 2
    Date:
    Observer: Catherine Hagen
    Location: Castle Creek Road, Aspen, Colorado, US (39.036, -106.807)
  61. Aythya sp. Aythya sp.
    # Count: 4
    Date:
    Observer: Bryan Gieszl
    Location: Chapman Campground
  62. Downy/Hairy Woodpecker Dryobates pubescens/villosus
    # Count: 1
    Date:
    Observer: Donald Verser
    Location: Crown Jewel Trail, Basalt US-CO 39.34918, -107.10137
  63. hawk sp. Accipitridae sp. (hawk sp.)
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Rio Grande Trail--Gerbaz Way Bridge to Snowmass
  64. passerine sp. Passeriformes sp.
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Aspen Golf Course, Colorado, US (39.201, -106.847)
  65. finch sp. Fringillidae sp.
    # Count: 2
    Date:
    Observer: Barry Mink
    Location: Brush Creek Co
  66. Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperii
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Cozy Point Open Space, Aspen, Colorado, US (39.25, -106.885)
  67. Black-capped/Mountain Chickadee Poecile atricapillus/gambeli
    # Count: 2
    Date:
    Observer: missy Prudden
    Location: 7406 Upper River Rd, Aspen US-CO (39.2793,-106.8907)
  68. bluebird sp. Sialia sp.
    # Count: 2
    Date:
    Observer: missy Prudden
    Location: 7406 Upper River Rd, Aspen US-CO (39.2793,-106.8907)
  69. new world sparrow sp. Passerellidae sp.
    # Count: 2
    Date:
    Observer: missy Prudden
    Location: 7406 Upper River Rd, Aspen US-CO (39.2793,-106.8907)
  70. rosy-finch sp. Leucosticte sp.
    # Count: 500
    Date:
    Observer: Bryan Gieszl
    Location: Home
  71. swallow sp. Hirundinidae sp.
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Emma Open Space
  72. woodpecker sp. Picidae sp.
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Aspen, Colorado, US (39.187, -106.815)
  73. Ruby-crowned/Golden-crowned Kinglet Corthylio calendula/Regulus satrapa
    # Count: 1
    Date:
    Observer: Barry Mink
    Location: Brush Creek Co
  74. hummingbird sp. Trochilidae sp.
    # Count: 1
    Date:
    Observer: David Suddjian
    Location: Pitkin - Prince Creek Road from Pitkin line to end of pavement