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Bird List

Updated ~2 days ago
239 All Years 148 This Year 2024 113 This Month May 2024
Last Observed First Observed High Count

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  1. Species Name
    Count
    Date
    Observer
    Location

Native and Naturalized (239)

  1. Red-necked Phalarope Phalaropus lobatus
    # Count: 90
    Date:
    Observer: Ernie Bradley
    Location: Snowmass Village Sewage Pond CO
  2. Western Sandpiper Calidris mauri
    # Count: 80
    Date:
    Observer: John Anderson
    Location: Lost Man Loop Trail
  3. Pinyon Jay Gymnorhinus cyanocephalus
    # Count: 30
    Date:
    Observer: Dick Filby
    Location: 201 Colorado 82, Basalt, Colorado, US (39.364, -107.035)
  4. Violet-green Swallow Tachycineta thalassina
    # Count: 30
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  5. Wilson's Phalarope Phalaropus tricolor
    # Count: 23
    Date:
    Observer: Rebecca Weiss
    Location: Aspen Center for Environmental Studies
  6. Bohemian Waxwing Bombycilla garrulus
    # Count: 15
    Date:
    Observer: Bryan Gieszl
    Location: Pond in Fox Run subdivision
  7. Cackling Goose Branta hutchinsii
    # Count: 12
    Date:
    Observer: Dick Filby
    Location: Highway133 Pitkin County Line to KOA
  8. Common Goldeneye Bucephala clangula
    # Count: 12
    Date:
    Observer: Chris Daniels
    Location: 18402–18922 Frying Pan Rd, Meredith US-CO (39.3621,-106.7581)
  9. Red-winged Blackbird Agelaius phoeniceus
    # Count: 10
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  10. White-tailed Ptarmigan Lagopus leucura
    # Count: 9
    Date:
    Observer: Rebecca Weiss
    Location: White River National Forest, Snowmass Village US-CO 39.16757, -106.96621
  11. Forster's Tern Sterna forsteri
    # Count: 9
    Date:
    Observer: Bryan Gieszl
    Location: Ruedi Reservoir (Pitkin County)
  12. Canada Goose Branta canadensis
    # Count: 7
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  13. Hooded Merganser Lophodytes cucullatus
    # Count: 7
    Date:
    Observer: Liz Bokram
    Location: Lake Wildcat Way, Snowmass, Colorado, US (39.243, -106.953) Private
  14. Brown-capped Rosy-Finch Leucosticte australis
    # Count: 7
    Date:
    Observer: Bryan Gieszl
    Location: Home
  15. Western Grebe Aechmophorus occidentalis
    # Count: 6
    Date:
    Observer: Bryan Gieszl
    Location: Ruedi Reservoir (Pitkin County)
  16. American Avocet Recurvirostra americana
    # Count: 6
    Date:
    Observer: Chris Daniels
    Location: Black Bess Day Use Area
  17. Willet Tringa semipalmata
    # Count: 6
    Date:
    Observer: Chris Daniels
    Location: Black Bess Day Use Area
  18. Cassia Crossbill Loxia sinesciuris
    # Count: 6
    Date:
    Observer: Chris Daniels
    Location: Government Trail
  19. Brewer's Sparrow Spizella breweri
    # Count: 6
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  20. American Tree Sparrow Spizelloides arborea
    # Count: 6
    Date:
    Observer: Bryan Gieszl
    Location: 1885–3303 Capitol Creek Rd, Snowmass US-CO 39.29222, -107.01224
  21. Common Merganser Mergus merganser
    # Count: 5
    Date:
    Observer: Bryan Gieszl
    Location: White River National Forest, Meredith US-CO 39.36212, -106.77823
  22. Eared Grebe Podiceps nigricollis
    # Count: 5
    Date:
    Observer: Bryan Gieszl
    Location: Ruedi Reservoir (Pitkin County)
  23. Northern Rough-winged Swallow Stelgidopteryx serripennis
    # Count: 5
    Date:
    Observer: Catherine Hagen
    Location: Emma Road, Basalt, Colorado, US (39.365, -107.059)
  24. Common Redpoll Acanthis flammea
    # Count: 5
    Date:
    Observer: John Dreves
    Location: White River National Forest, Aspen US-CO (39.0873,-106.8124)
  25. Song Sparrow Melospiza melodia
    # Count: 5
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  26. Yellow Warbler Setophaga petechia
    # Count: 5
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  27. Mallard Anas platyrhynchos
    # Count: 4
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  28. Green-winged Teal Anas crecca
    # Count: 4
    Date:
    Observer: Chris Daniels
    Location: Black Bess Day Use Area
  29. Lesser Scaup Aythya affinis
    # Count: 4
    Date:
    Observer: Chris Daniels
    Location: East Brush Creek Nature Trail and Ponds
  30. Rock Pigeon Columba livia
    # Count: 4
    Date:
    Observer: Jim Prall
    Location: Wagner Park
  31. White-throated Swift Aeronautes saxatalis
    # Count: 4
    Date:
    Observer: Chris Daniels
    Location: Rim Trail South (Yin Yang Intersection to Sinclair Rd)
  32. Black-chinned Hummingbird Archilochus alexandri
    # Count: 4
    Date:
    Observer: Bryan Gieszl
    Location: Fairview Cemetery (Basalt)
  33. Great Blue Heron Ardea herodias
    # Count: 4
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  34. Dusky Flycatcher Empidonax oberholseri
    # Count: 4
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  35. Purple Martin Progne subis
    # Count: 4
    Date:
    Observer: Bryan Gieszl
    Location: East Brush Creek Nature Trail and Ponds
  36. European Starling Sturnus vulgaris
    # Count: 4
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  37. Pine Siskin Spinus pinus
    # Count: 4
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  38. Northern Pintail Anas acuta
    # Count: 3
    Date:
    Observer: Chris Daniels
    Location: Black Bess Day Use Area
  39. Black Swift Cypseloides niger
    # Count: 3
    Date:
    Observer: John Anderson
    Location: Maroon Lake area
  40. Broad-tailed Hummingbird Selasphorus platycercus
    # Count: 3
    Date:
    Observer: Catherine Hagen
    Location: Yard, Aspen, Colorado, US (39.189, -106.809)
  41. Virginia Rail Rallus limicola
    # Count: 3
    Date:
    Observer: Bryan Gieszl
    Location: Emma Open Space
  42. Spotted Sandpiper Actitis macularius
    # Count: 3
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  43. Ring-billed Gull Larus delawarensis
    # Count: 3
    Date:
    Observer: Bryan Gieszl
    Location: East Brush Creek Nature Trail and Ponds
  44. Red-tailed Hawk Buteo jamaicensis
    # Count: 3
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  45. Northern Flicker Colaptes auratus
    # Count: 3
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  46. Woodhouse's Scrub-Jay Aphelocoma woodhouseii
    # Count: 3
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  47. Black-billed Magpie Pica hudsonia
    # Count: 3
    Date:
    Observer: Jude Stradtner
    Location: Dooley Creek Farm (PRIVATE PROPERTY, NO PUBLIC ACCESS)
  48. American Crow Corvus brachyrhynchos
    # Count: 3
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  49. Horned Lark Eremophila alpestris
    # Count: 3
    Date:
    Observer: James Lee
    Location: Independence Pass
  50. Ruby-crowned Kinglet Corthylio calendula
    # Count: 3
    Date:
    Observer: Jude Stradtner
    Location: Dooley Creek Farm (PRIVATE PROPERTY, NO PUBLIC ACCESS)
  51. Orange-crowned Warbler Leiothlypis celata
    # Count: 3
    Date:
    Observer: Jude Stradtner
    Location: Dooley Creek Farm (PRIVATE PROPERTY, NO PUBLIC ACCESS)
  52. Western Tanager Piranga ludoviciana
    # Count: 3
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  53. Wood Duck Aix sponsa
    # Count: 2
    Date:
    Observer: Rebecca Weiss
    Location: Aspen Center for Environmental Studies
  54. Cinnamon Teal Spatula cyanoptera
    # Count: 2
    Date:
    Observer: Bryan Gieszl
    Location: Ruedi Reservoir (Pitkin County)
  55. Gadwall Mareca strepera
    # Count: 2
    Date:
    Observer: Chris Daniels
    Location: East Brush Creek Nature Trail and Ponds
  56. Ring-necked Duck Aythya collaris
    # Count: 2
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  57. Bufflehead Bucephala albeola
    # Count: 2
    Date:
    Observer: Chris Daniels
    Location: Black Bess Day Use Area
  58. Calliope Hummingbird Selasphorus calliope
    # Count: 2
    Date:
    Observer: Elizabeth Tighe-Andino
    Location: 685 East Durant Avenue, Aspen, Colorado, US (39.186, -106.818)
  59. American Coot Fulica americana
    # Count: 2
    Date:
    Observer: Chris Daniels
    Location: East Brush Creek Nature Trail and Ponds
  60. Black-necked Stilt Himantopus mexicanus
    # Count: 2
    Date:
    Observer: John Anderson
    Location: East Brush Creek Nature Trail and Ponds
  61. Wilson's Snipe Gallinago delicata
    # Count: 2
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  62. Lesser Yellowlegs Tringa flavipes
    # Count: 2
    Date:
    Observer: Catherine Hagen
    Location: East Brush Creek Nature Trail and Ponds
  63. Greater Yellowlegs Tringa melanoleuca
    # Count: 2
    Date:
    Observer: Rebecca Weiss
    Location: East Brush Creek Nature Trail and Ponds
  64. Turkey Vulture Cathartes aura
    # Count: 2
    Date:
    Observer: Jude Stradtner
    Location: Dooley Creek Farm (PRIVATE PROPERTY, NO PUBLIC ACCESS)
  65. Lewis's Woodpecker Melanerpes lewis
    # Count: 2
    Date:
    Observer: missy Prudden
    Location: 7406 Upper River Rd, Aspen US-CO (39.2793,-106.8907)
  66. Western Kingbird Tyrannus verticalis
    # Count: 2
    Date:
    Observer: Dan Jones
    Location: Ruedi Reservoir (Pitkin County)
  67. Cassin's Vireo Vireo cassinii
    # Count: 2
    Date:
    Observer: Chris Daniels
    Location: Marolt Open Space
  68. Plumbeous Vireo Vireo plumbeus
    # Count: 2
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  69. Canada Jay Perisoreus canadensis
    # Count: 2
    Date:
    Observer: Tim Webb-Horvath
    Location: Snowmass
  70. Common Raven Corvus corax
    # Count: 2
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  71. Black-capped Chickadee Poecile atricapillus
    # Count: 2
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  72. Tree Swallow Tachycineta bicolor
    # Count: 2
    Date:
    Observer: Bryan Gieszl
    Location: Home
  73. Bushtit Psaltriparus minimus
    # Count: 2
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  74. Golden-crowned Kinglet Regulus satrapa
    # Count: 2
    Date:
    Observer: Bryan Gieszl
    Location: 3170–3176 Maroon Creek Rd, Aspen US-CO 39.14694, -106.89341
  75. Blue-gray Gnatcatcher Polioptila caerulea
    # Count: 2
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  76. House Wren Troglodytes aedon
    # Count: 2
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  77. Gray Catbird Dumetella carolinensis
    # Count: 2
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  78. Sage Thrasher Oreoscoptes montanus
    # Count: 2
    Date:
    Observer: Bryan Gieszl
    Location: Moore Open Space
  79. Western Bluebird Sialia mexicana
    # Count: 2
    Date:
    Observer: Catherine Hagen
    Location: Fairview Cemetery, Basalt, Colorado, US (39.364, -107.021)
  80. American Robin Turdus migratorius
    # Count: 2
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  81. Lincoln's Sparrow Melospiza lincolnii
    # Count: 2
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  82. Green-tailed Towhee Pipilo chlorurus
    # Count: 2
    Date:
    Observer: Bryan Gieszl
    Location: Home
  83. Yellow-headed Blackbird Xanthocephalus xanthocephalus
    # Count: 2
    Date:
    Observer: Rebecca Weiss
    Location: East Brush Creek Nature Trail and Ponds
  84. Virginia's Warbler Leiothlypis virginiae
    # Count: 2
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  85. Common Yellowthroat Geothlypis trichas
    # Count: 2
    Date:
    Observer: Dina Baker
    Location: East Brush Creek Nature Trail and Ponds
  86. Lazuli Bunting Passerina amoena
    # Count: 2
    Date:
    Observer: Bryan Gieszl
    Location: Fairview Cemetery (Basalt)
  87. Snow Goose Anser caerulescens
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: The Snowmass Club, Snowmass Village US-CO 39.22306, -106.92634
  88. Greater White-fronted Goose Anser albifrons
    # Count: 1
    Date:
    Observer: Matt Kuhn
    Location: East Brush Creek Nature Trail and Ponds
  89. Trumpeter Swan Cygnus buccinator
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Difficult Campground Road, Aspen, Colorado, US (39.148, -106.778)
  90. Blue-winged Teal Spatula discors
    # Count: 1
    Date:
    Observer: Phebe Meyers
    Location: Aspen Center for Environmental Studies
  91. Northern Shoveler Spatula clypeata
    # Count: 1
    Date:
    Observer: Phebe Meyers
    Location: Aspen Center for Environmental Studies
  92. American Wigeon Mareca americana
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  93. Mexican Duck Anas diazi
    # Count: 1
    Date:
    Observer: Nathan Pieplow
    Location: Aspen Mass Open Space
  94. Redhead Aythya americana
    # Count: 1
    Date:
    Observer: Liz Bokram
    Location: 2759 County Road 12, Aspen, Colorado, US (39.212, -106.901) (Private)
  95. Long-tailed Duck Clangula hyemalis
    # Count: 1
    Date:
    Observer: Vic Zerbi
    Location: Ruedi Reservoir (Pitkin County)
  96. Barrow's Goldeneye Bucephala islandica
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Ruedi Reservoir, Meredith US-CO 39.36144, -106.77805
  97. Red-breasted Merganser Mergus serrator
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: East Brush Creek Nature Trail and Ponds
  98. Ruddy Duck Oxyura jamaicensis
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: East Brush Creek Nature Trail and Ponds
  99. Wild Turkey Meleagris gallopavo
    # Count: 1
    Date:
    Observer: Jude Stradtner
    Location: Dooley Creek Farm (PRIVATE PROPERTY, NO PUBLIC ACCESS)
  100. Dusky Grouse Dendragapus obscurus
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: 38996 SH-82 E, Aspen US-CO 39.20227, -106.85296
  101. Pied-billed Grebe Podilymbus podiceps
    # Count: 1
    Date:
    Observer: Phebe Meyers
    Location: Aspen Center for Environmental Studies
  102. Horned Grebe Podiceps auritus
    # Count: 1
    Date:
    Observer: Vic Zerbi
    Location: Ruedi Reservoir (Pitkin County)
  103. Band-tailed Pigeon Patagioenas fasciata
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  104. Eurasian Collared-Dove Streptopelia decaocto
    # Count: 1
    Date:
    Observer: Jude Stradtner
    Location: Dooley Creek Farm (PRIVATE PROPERTY, NO PUBLIC ACCESS)
  105. Mourning Dove Zenaida macroura
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  106. Common Nighthawk Chordeiles minor
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: 81611, Aspen US-CO 39.19202, -106.84887
  107. Common Poorwill Phalaenoptilus nuttallii
    # Count: 1
    Date:
    Observer: sage church
    Location: 81621, Basalt US-CO 39.36602, -107.11184
  108. Rivoli's Hummingbird Eugenes fulgens
    # Count: 1
    Date:
    Observer: Vic Zerbi
    Location: Aspen Center for Environmental Studies
  109. Rufous Hummingbird Selasphorus rufus
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Yard, Aspen, Colorado, US (39.189, -106.809)
  110. Sora Porzana carolina
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: The Snowmass Club, Snowmass Village US-CO 39.21825, -106.92557
  111. Sandhill Crane Antigone canadensis
    # Count: 1
    Date:
    Observer: missy Prudden
    Location: 390 Woody Creek Rd, Woody Creek US-CO 39.27700, -106.88405
  112. Killdeer Charadrius vociferus
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  113. Long-billed Dowitcher Limnodromus scolopaceus
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: Independence Pass
  114. Solitary Sandpiper Tringa solitaria
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Ruedi Reservoir (Pitkin County)
  115. Baird's Sandpiper Calidris bairdii
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: Independence Pass
  116. Least Sandpiper Calidris minutilla
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Independence Pass
  117. Franklin's Gull Leucophaeus pipixcan
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: East Brush Creek Nature Trail and Ponds
  118. California Gull Larus californicus
    # Count: 1
    Date:
    Observer: daisy debelle
    Location: Champion Mill, Colorado, US (39.108, -106.564)
  119. Pacific Loon Gavia pacifica
    # Count: 1
    Date:
    Observer: Reid Greiner
    Location: Ruedi Reservoir (Pitkin County)
  120. Common Loon Gavia immer
    # Count: 1
    Date:
    Observer: Carol Ortenzio
    Location: Ruedi Reservoir
  121. Double-crested Cormorant Nannopterum auritum
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: 132 Emma Rd, Basalt US-CO 39.36399, -107.03417
  122. American White Pelican Pelecanus erythrorhynchos
    # Count: 1
    Date:
    Observer: Vic Zerbi
    Location: Ruedi Reservoir (Pitkin County)
  123. Black-crowned Night Heron Nycticorax nycticorax
    # Count: 1
    Date:
    Observer: Reed Gorner
    Location: Chapman Campground
  124. Great Egret Ardea alba
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Northstar, Private Property, Aspen, Colorado, US
  125. White-faced Ibis Plegadis chihi
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Independence Pass
  126. Osprey Pandion haliaetus
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  127. Golden Eagle Aquila chrysaetos
    # Count: 1
    Date:
    Observer: Mariano Diez Peña
    Location: Hallam Lake, Aspen US-CO 39.19507, -106.82168
  128. Northern Harrier Circus hudsonius
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  129. Sharp-shinned Hawk Accipiter striatus
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: 29562–32100 Frying Pan Rd, Meredith US-CO 39.30903, -106.62510
  130. Cooper's Hawk Accipiter cooperii
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  131. American Goshawk Accipiter atricapillus
    # Count: 1
    Date:
    Observer: Joan Larrabee
    Location: Lost Man Loop, Meredith US-CO 39.12742, -106.61996
  132. Bald Eagle Haliaeetus leucocephalus
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Ruedi Reservoir (Pitkin County)
  133. Swainson's Hawk Buteo swainsoni
    # Count: 1
    Date:
    Observer: Chris Nabel
    Location: Northstar Preserve, East Aspen trail
  134. Rough-legged Hawk Buteo lagopus
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: 4001–4327 SH-133, Carbondale US-CO 39.36431, -107.20346
  135. Ferruginous Hawk Buteo regalis
    # Count: 1
    Date:
    Observer: Kathy Mihm Dunning
    Location: Midway Pass Trail - Wilderness Boundary to Treeline
  136. Flammulated Owl Psiloscops flammeolus
    # Count: 1
    Date:
    Observer: TC Walker
    Location: Aspen, Colorado, US (39.228, -106.83)
  137. Great Horned Owl Bubo virginianus
    # Count: 1
    Date:
    Observer: Matt Herndon
    Location: McLain Flats Rd, Aspen US-CO (39.2247,-106.8546)
  138. Northern Pygmy-Owl Glaucidium gnoma
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: White River National Forest, Snowmass Village US-CO 39.19666, -106.93037
  139. Burrowing Owl Athene cunicularia
    # Count: 1
    Date:
    Observer: Rebecca Weiss
    Location: Aspen Golf Club, Aspen US-CO 39.20096, -106.84688
  140. Long-eared Owl Asio otus
    # Count: 1
  141. Short-eared Owl Asio flammeus
    # Count: 1
    Date:
    Observer: Buzz Scher
    Location: Capitol Creek Rd (Pitkin CR 9)--Monastery Rd to Snowmass Creek Rd
  142. Boreal Owl Aegolius funereus
    # Count: 1
    Date:
    Observer: Nicholas Koebley
    Location: Maroon Lake area
  143. Northern Saw-whet Owl Aegolius acadicus
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: Independence Pass Winter Closure Gate
  144. Belted Kingfisher Megaceryle alcyon
    # Count: 1
    Date:
    Observer: Phebe Meyers
    Location: Aspen Center for Environmental Studies
  145. Williamson's Sapsucker Sphyrapicus thyroideus
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: Triangle Peak Trail, Meredith US-CO 39.30547, -106.92381
  146. Red-naped Sapsucker Sphyrapicus nuchalis
    # Count: 1
    Date:
    Observer: Jude Stradtner
    Location: Dooley Creek Farm (PRIVATE PROPERTY, NO PUBLIC ACCESS)
  147. American Three-toed Woodpecker Picoides dorsalis
    # Count: 1
    Date:
    Observer: George Waaler
    Location: Lost Man Lake Trailhead
  148. Downy Woodpecker Dryobates pubescens
    # Count: 1
    Date:
    Observer: Jude Stradtner
    Location: Dooley Creek Farm (PRIVATE PROPERTY, NO PUBLIC ACCESS)
  149. Hairy Woodpecker Dryobates villosus
    # Count: 1
    Date:
    Observer: Jude Stradtner
    Location: Dooley Creek Farm (PRIVATE PROPERTY, NO PUBLIC ACCESS)
  150. American Kestrel Falco sparverius
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  151. Merlin Falco columbarius
    # Count: 1
    Date:
    Observer: Dick Filby
    Location: 425 Gerbaz Way, Snowmass, Colorado, US (39.299, -106.919)
  152. Peregrine Falcon Falco peregrinus
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: 31336 SH-82, Aspen US-CO 39.29485, -106.92084
  153. Prairie Falcon Falco mexicanus
    # Count: 1
    Date:
    Observer: Eric Sorenson
    Location: Coal Basin Ranch
  154. Olive-sided Flycatcher Contopus cooperi
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: Aspen Center for Environmental Studies
  155. Western Wood-Pewee Contopus sordidulus
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: 219 Puppy Smith St, Aspen US-CO 39.19419, -106.81981
  156. Willow Flycatcher Empidonax traillii
    # Count: 1
    Date:
    Observer: Michael Emenaker
    Location: 25110 SH-82, Snowmass US-CO 39.34390, -107.00840
  157. Hammond's Flycatcher Empidonax hammondii
    # Count: 1
    Date:
    Observer: Rebecca Weiss
    Location: Smuggler Mountain Open Space
  158. Gray Flycatcher Empidonax wrightii
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: Black Bess Day Use Area
  159. Western Flycatcher Empidonax difficilis
    # Count: 1
    Date:
    Observer: Jude Stradtner
    Location: Dooley Creek Farm (PRIVATE PROPERTY, NO PUBLIC ACCESS)
  160. Say's Phoebe Sayornis saya
    # Count: 1
    Date:
    Observer: Jude Stradtner
    Location: Dooley Creek Farm (PRIVATE PROPERTY, NO PUBLIC ACCESS)
  161. Ash-throated Flycatcher Myiarchus cinerascens
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Fairview Cemetery (Basalt)
  162. Eastern Kingbird Tyrannus tyrannus
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: East Brush Creek Nature Trail and Ponds
  163. Warbling Vireo Vireo gilvus
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  164. Red-eyed Vireo Vireo olivaceus
    # Count: 1
    Date:
    Observer: Angela Holbrook
    Location: Colorado - Difficult Campground
  165. Loggerhead Shrike Lanius ludovicianus
    # Count: 1
    Date:
    Observer: Barry Mink
    Location: Brush Creek Co
  166. Northern Shrike Lanius borealis
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: 1200–1332 Owl Creek Rd, Aspen US-CO (39.2209,-106.8739)
  167. Steller's Jay Cyanocitta stelleri
    # Count: 1
    Date:
    Observer: Adriana Jacobi 🦜
    Location: Independence Pass
  168. Blue Jay Cyanocitta cristata
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: 420 Cemetery Lane, Aspen Golf Course, Colorado, US (39.197, -106.835)
  169. Clark's Nutcracker Nucifraga columbiana
    # Count: 1
    Date:
    Observer: Patrick Nagle
    Location: Dinkle Lake
  170. Mountain Chickadee Poecile gambeli
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  171. Juniper Titmouse Baeolophus ridgwayi
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Fairview Cemetery (Basalt)
  172. Bank Swallow Riparia riparia
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: East Brush Creek Nature Trail and Ponds
  173. Barn Swallow Hirundo rustica
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: The Snowmass Club, Snowmass Village US-CO 39.22306, -106.92634
  174. Cliff Swallow Petrochelidon pyrrhonota
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Ruedi Reservoir (Pitkin County)
  175. White-breasted Nuthatch Sitta carolinensis
    # Count: 1
    Date:
    Observer: Jude Stradtner
    Location: Dooley Creek Farm (PRIVATE PROPERTY, NO PUBLIC ACCESS)
  176. Pygmy Nuthatch Sitta pygmaea
    # Count: 1
    Date:
    Observer: Rick Machin
    Location: Aspen Grove Cemetery
  177. Red-breasted Nuthatch Sitta canadensis
    # Count: 1
    Date:
    Observer: Rebecca Weiss
    Location: Smuggler Mountain Open Space
  178. Brown Creeper Certhia americana
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: 39.181945, -106.876074 Aspen, CO 816
  179. Rock Wren Salpinctes obsoletus
    # Count: 1
    Date:
    Observer: adr cso
    Location: Arbaney Kittle Trail
  180. Canyon Wren Catherpes mexicanus
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Rocky Fork, Meredith US-CO 39.35819, -106.82043
  181. Pacific Wren Troglodytes pacificus
    # Count: 1
    Date:
    Observer: Jason Gregg
    Location: Lily Lake Trail
  182. Marsh Wren Cistothorus palustris
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: The Snowmass Club, Snowmass Village US-CO 39.22306, -106.92634
  183. American Dipper Cinclus mexicanus
    # Count: 1
    Date:
    Observer: Jude Stradtner
    Location: Dooley Creek Farm (PRIVATE PROPERTY, NO PUBLIC ACCESS)
  184. Curve-billed Thrasher Toxostoma curvirostre
    # Count: 1
    Date:
    Observer: Coen Dexter
    Location: Curve-billed Thrasher stake-out
  185. Northern Mockingbird Mimus polyglottos
    # Count: 1
    Date:
    Observer: Jim Prall
    Location: John Denver Sanctuary
  186. Mountain Bluebird Sialia currucoides
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Fairview Cemetery (Basalt)
  187. Townsend's Solitaire Myadestes townsendi
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  188. Veery Catharus fuscescens
    # Count: 1
    Date:
    Observer: Christian Nunes
    Location: Maroon Lake Scenic Trail, Aspen US-CO (39.0979,-106.9443)
  189. Swainson's Thrush Catharus ustulatus
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Difficult Campground
  190. Hermit Thrush Catharus guttatus
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  191. Cedar Waxwing Bombycilla cedrorum
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  192. House Sparrow Passer domesticus
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Yard, Aspen, Colorado, US (39.189, -106.809)
  193. American Pipit Anthus rubescens
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Northstar Preserve, East Aspen trail
  194. Evening Grosbeak Coccothraustes vespertinus
    # Count: 1
    Date:
    Observer: Jude Stradtner
    Location: Dooley Creek Farm (PRIVATE PROPERTY, NO PUBLIC ACCESS)
  195. Pine Grosbeak Pinicola enucleator
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Midland Park Place, Aspen, Colorado, US (39.189, -106.809)
  196. Gray-crowned Rosy-Finch Leucosticte tephrocotis
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  197. Black Rosy-Finch Leucosticte atrata
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  198. House Finch Haemorhous mexicanus
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  199. Cassin's Finch Haemorhous cassinii
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Yard, Aspen, Colorado, US (39.189, -106.809)
  200. Red Crossbill Loxia curvirostra
    # Count: 1
    Date:
    Observer: Rebecca Weiss
    Location: Radar Rd, Aspen US-CO 39.22431, -106.87293
  201. Lesser Goldfinch Spinus psaltria
    # Count: 1
    Date:
    Observer: Barry Mink
    Location: Brush Creek Co
  202. American Goldfinch Spinus tristis
    # Count: 1
    Date:
    Observer: Jude Stradtner
    Location: Dooley Creek Farm (PRIVATE PROPERTY, NO PUBLIC ACCESS)
  203. Grasshopper Sparrow Ammodramus savannarum
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Aspen Meadows, Aspen, Colorado, US (39.202, -106.831)
  204. Chipping Sparrow Spizella passerina
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  205. Clay-colored Sparrow Spizella pallida
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Chapman Campground
  206. Lark Sparrow Chondestes grammacus
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Ruedi Reservoir (Pitkin County)
  207. Lark Bunting Calamospiza melanocorys
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Meadows Rd trails
  208. Fox Sparrow Passerella iliaca
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: East Aspen Trail, Aspen, Colorado, US (39.152, -106.784)
  209. Dark-eyed Junco Junco hyemalis
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Yard, Aspen, Colorado, US (39.189, -106.809)
  210. White-crowned Sparrow Zonotrichia leucophrys
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  211. Golden-crowned Sparrow Zonotrichia atricapilla
    # Count: 1
    Date:
    Observer: Colorado Bird Records Committee
    Location: Aspen
  212. Harris's Sparrow Zonotrichia querula
    # Count: 1
    Date:
    Observer: George Waaler
    Location: 478 Oak Ridge Rd, Snowmass Village US-CO 39.22804, -106.93214
  213. White-throated Sparrow Zonotrichia albicollis
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Yard, Aspen, Colorado, US (39.189, -106.809)
  214. Vesper Sparrow Pooecetes gramineus
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  215. Savannah Sparrow Passerculus sandwichensis
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  216. Swamp Sparrow Melospiza georgiana
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: East Brush Creek Nature Trail and Ponds
  217. Spotted Towhee Pipilo maculatus
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  218. Yellow-breasted Chat Icteria virens
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: East Brush Creek Nature Trail and Ponds
  219. Western Meadowlark Sturnella neglecta
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  220. Bullock's Oriole Icterus bullockii
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  221. Baltimore Oriole Icterus galbula
    # Count: 1
    Date:
    Observer: Vic Zerbi
    Location: Thomas Road
  222. Brown-headed Cowbird Molothrus ater
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  223. Brewer's Blackbird Euphagus cyanocephalus
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Owl Creek Trail, Aspen US-CO 39.21119, -106.89948
  224. Common Grackle Quiscalus quiscula
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  225. Northern Waterthrush Parkesia noveboracensis
    # Count: 1
    Date:
    Observer: Edward Buckler
    Location: Aspen Center for Environmental Studies
  226. 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)
  227. Nashville Warbler Leiothlypis ruficapilla
    # Count: 1
    Date:
    Observer: John Anderson
    Location: Marolt Open Space
  228. MacGillivray's Warbler Geothlypis tolmiei
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  229. American Redstart Setophaga ruticilla
    # Count: 1
    Date:
    Observer: John Anderson
    Location: Woody Creek Rd (Pitkin CR 18)--Upper River Rd to Canyon Mouth
  230. Northern Parula Setophaga americana
    # Count: 1
    Date:
    Observer: Larry Arnold
    Location: Private Neighborhood (General Location)
  231. Chestnut-sided Warbler Setophaga pensylvanica
    # Count: 1
    Date:
    Observer: Anders Weiss
    Location: Home
  232. Yellow-rumped Warbler Setophaga coronata
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: Windstar Ranch Loop Trail
  233. Black-throated Gray Warbler Setophaga nigrescens
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Fairview Cemetery (Basalt)
  234. Townsend's Warbler Setophaga townsendi
    # Count: 1
    Date:
    Observer: Chris Daniels
    Location: Chris’ House
  235. Wilson's Warbler Cardellina pusilla
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: East Aspen Trail, Aspen, Colorado, US (39.152, -106.784)
  236. Rose-breasted Grosbeak Pheucticus ludovicianus
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Home
  237. Black-headed Grosbeak Pheucticus melanocephalus
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Aspen Center for Environmental Studies
  238. Blue Grosbeak Passerina caerulea
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Bus Barn Lane, Aspen, Colorado, US (39.191, -106.847)
  239. Indigo Bunting Passerina cyanea
    # Count: 1
    Date:
    Observer: Vic Zerbi
    Location: East Brush Creek Nature Trail and Ponds

Exotic: Escapee (2)

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

Additional Taxa (74)

  1. rosy-finch sp. Leucosticte sp.
    # Count: 500
    Date:
    Observer: Bryan Gieszl
    Location: Home
  2. blackbird sp. Icteridae sp.
    # Count: 45
    Date:
    Observer: Rebecca Weiss
    Location: Marolt Open Space
  3. dabbling duck sp. Anatidae sp. (dabbling duck sp.)
    # Count: 30
    Date:
    Observer: Jack Bushong
    Location: Ruedi Reservoir (Pitkin County)
  4. Blue-winged/Cinnamon Teal Spatula discors/cyanoptera
    # Count: 20
    Date:
    Observer: Bryan Gieszl
    Location: Ruedi Reservoir (Pitkin County)
  5. Bohemian/Cedar Waxwing Bombycilla garrulus/cedrorum
    # Count: 14
    Date:
    Observer: Michael Stein
    Location: Aspen Center for Environmental Studies
  6. hummingbird sp. Trochilidae sp.
    # Count: 10
    Date:
    Observer: Sydney McBrayer
    Location: home
  7. Spizella sp. Spizella sp.
    # Count: 6
    Date:
    Observer: Rebecca Weiss
    Location: Marolt Open Space
  8. Aythya sp. Aythya sp.
    # Count: 4
    Date:
    Observer: Bryan Gieszl
    Location: Chapman Campground
  9. crow/raven sp. Corvus sp.
    # Count: 4
    Date:
    Observer: Kelly Ducham
    Location: 18 Hidden Ln, Snowmass Village US-CO 39.20342, -106.94623
  10. new world goldfinch sp. Spinus sp. (goldfinch sp.)
    # Count: 4
    Date:
    Observer: Jason Gregg
    Location: Aspen Center for Environmental Studies
  11. Spinus sp. Spinus sp.
    # Count: 4
    Date:
    Observer: Jake Shorty
    Location: Rio Grande Trail--Gerbaz Way Bridge to Snowmass
  12. Greater/Lesser Scaup Aythya marila/affinis
    # Count: 3
    Date:
    Observer: Ernie Bradley
    Location: Placita River Bottoms CO
  13. 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
  14. swift sp. Apodidae sp.
    # Count: 3
    Date:
    Observer: Janet Gallenstein
    Location: Redstone (town)
  15. duck sp. Anatidae (duck sp.)
    # Count: 2
    Date:
    Observer: Catherine Hagen
    Location: Community Garden, Aspen, Colorado, US (39.193, -106.836)
  16. Horned/Eared Grebe Podiceps auritus/nigricollis
    # Count: 2
    Date:
    Observer: JoAnn Potter Riggle 🦤
    Location: Ruedi Inlet area
  17. Western/Clark's Grebe Aechmophorus occidentalis/clarkii
    # Count: 2
    Date:
    Observer: Bryan Gieszl
    Location: Ruedi Reservoir (Pitkin County)
  18. Lesser/Greater Yellowlegs Tringa flavipes/melanoleuca
    # Count: 2
    Date:
    Observer: Dan Jones
    Location: Ruedi Reservoir (Pitkin County)
  19. Yellow-bellied/Red-naped Sapsucker Sphyrapicus varius/nuchalis
    # Count: 2
    Date:
    Observer: Jon Webb
    Location: Avalanche Ranch
  20. new world flycatcher sp. Tyrannidae sp.
    # Count: 2
    Date:
    Observer: Jason Gregg
    Location: Aspen Center for Environmental Studies
  21. 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)
  22. swallow sp. Hirundinidae sp.
    # Count: 2
    Date:
    Observer: Lisa Ayres
    Location: High School Winter Trail, Aspen US-CO (39.1907,-106.8428)
  23. Ruby-crowned/Golden-crowned Kinglet Corthylio calendula/Regulus satrapa
    # Count: 2
    Date:
    Observer: Chris Daniels
    Location: Green Mtn Trail - 82 to Cabins
  24. bluebird sp. Sialia sp.
    # Count: 2
    Date:
    Observer: missy Prudden
    Location: 7406 Upper River Rd, Aspen US-CO (39.2793,-106.8907)
  25. finch sp. Fringillidae sp.
    # Count: 2
    Date:
    Observer: Barry Mink
    Location: Brush Creek Co
  26. Spizella sp./American Tree Sparrow Spizella/Spizelloides sp.
    # Count: 2
    Date:
    Observer: Tamas Zeke
    Location: Snowmass Village--Ditch Trail
  27. towhee sp. Melozone/Pipilo sp.
    # Count: 2
    Date:
    Observer: sage church
    Location: 81623, Carbondale US-CO 39.35293, -107.14183
  28. new world sparrow sp. Passerellidae sp.
    # Count: 2
    Date:
    Observer: missy Prudden
    Location: 7406 Upper River Rd, Aspen US-CO (39.2793,-106.8907)
  29. new world warbler sp. Parulidae sp.
    # Count: 2
    Date:
    Observer: Catherine Hagen
    Location: Castle Creek Road, Aspen, Colorado, US (39.036, -106.807)
  30. Lazuli/Indigo Bunting Passerina amoena/cyanea
    # Count: 2
    Date:
    Observer: Bryan Gieszl
    Location: East Brush Creek Nature Trail and Ponds
  31. Snow/Ross's Goose Anser caerulescens/rossii
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Ruedi Reservoir (Pitkin County)
  32. goose sp. Anatidae (goose sp.)
    # Count: 1
    Date:
    Observer: Rebecca Weiss
    Location: Northstar, Private Property, Aspen, Colorado, US
  33. teal sp. Anatidae sp. (teal sp.)
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: East Brush Creek Nature Trail and Ponds
  34. pigeon/dove sp. Columbidae sp.
    # Count: 1
    Date:
    Observer: Joan Larrabee
    Location: Aspen Mountain
  35. Ruby-throated/Black-chinned Hummingbird Archilochus colubris/alexandri
    # Count: 1
    Date:
    Observer: Tamas Zeke
    Location: Snowmass Village--Rim Trail
  36. Rufous/Allen's Hummingbird Selasphorus rufus/sasin
    # Count: 1
    Date:
    Observer: Barry Mink
    Location: Brush Creek Co
  37. Selasphorus sp. Selasphorus sp.
    # Count: 1
    Date:
    Observer: Aaron Brees
    Location: West Maroon Creek--trail from Crater Lake toward West Maroon Pass
  38. peep sp. Calidris sp. (peep sp.)
    # Count: 1
    Date:
    Observer: Lisa Ayres
    Location: Marolt Open Space
  39. shorebird sp. Charadriiformes sp.
    # Count: 1
    Date:
    Observer: Dan Jones
    Location: Ruedi Reservoir (Pitkin County)
  40. gull sp. Larinae sp.
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: 27637–27845 SH-82 W, Snowmass US-CO 39.31730, -106.94091
  41. Glossy/White-faced Ibis Plegadis falcinellus/chihi
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Ruedi Reservoir (Pitkin County)
  42. 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)
  43. Accipiter sp. Accipiter sp.
    # Count: 1
    Date:
    Observer: Rebecca Weiss
    Location: Moore Open Space
  44. Golden/Bald Eagle Aquila chrysaetos/Haliaeetus leucocephalus
    # Count: 1
    Date:
    Observer: Mary Djurovic
    Location: High Alpine
  45. Buteo sp. Buteo sp.
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Meadows Trail, Aspen, Colorado, US (39.201, -106.832)
  46. Buteo/eagle sp. Buteo/eagle sp.
    # Count: 1
    Date:
    Observer: Sameer Apte
    Location: Aspen Highlands
  47. hawk sp. Accipitridae sp. (hawk sp.)
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Rio Grande Trail--Gerbaz Way Bridge to Snowmass
  48. owl sp. Strigiformes sp.
    # Count: 1
    Date:
    Observer: Rebecca Weiss
    Location: Midway P Tr, above ponds on ridge
  49. sapsucker sp. Sphyrapicus sp.
    # Count: 1
    Date:
    Observer: David Suddjian
    Location: Difficult Campground
  50. Downy/Hairy Woodpecker Dryobates pubescens/villosus
    # Count: 1
    Date:
    Observer: Donald Verser
    Location: Crown Jewel Trail, Basalt US-CO 39.34918, -107.10137
  51. woodpecker sp. Picidae sp.
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Yard, Aspen, Colorado, US (39.189, -106.809)
  52. large falcon sp. Falco sp. (large falcon sp.)
    # Count: 1
    Date:
    Observer: Rebecca Weiss
    Location: Upper Lost Man Trail
  53. small falcon sp. Falco sp. (small falcon sp.)
    # Count: 1
    Date:
    Observer: Dan Jones
    Location: Ruedi Reservoir (Pitkin County)
  54. falcon sp. Falco sp.
    # Count: 1
    Date:
    Observer: Phebe Meyers
    Location: White River National Forest, Aspen US-CO (39.1840,-106.8253)
  55. diurnal raptor sp. Accipitriformes/Falconiformes sp.
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Northstar Preserve, East Aspen trail
  56. pewee sp. (Contopus sp.) Contopus sp.
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Northstar Preserve, East Aspen trail
  57. Hammond's/Dusky Flycatcher Empidonax hammondii/oberholseri
    # Count: 1
    Date:
    Observer: Theo Bockhorst
    Location: Cathedral Lake Rd, Aspen US-CO 39.04247, -106.80387
  58. Empidonax sp. Empidonax sp.
    # Count: 1
    Date:
    Observer: Bryan Gieszl
    Location: Marolt Open Space
  59. Cassin's/Plumbeous Vireo Vireo cassinii/plumbeus
    # Count: 1
    Date:
    Observer: Dan Stone
    Location: St. Benedict's Monastery
  60. 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)
  61. California/Woodhouse's Scrub-Jay Aphelocoma californica/woodhouseii
    # Count: 1
    Date:
    Observer: Barry Mink
    Location: Aspen
  62. raven sp. Corvus sp. (raven sp.)
    # Count: 1
    Date:
    Observer: Barry Mink
    Location: Aspen
  63. chickadee sp. Poecile sp.
    # Count: 1
    Date:
    Observer: Jason Gregg
    Location: Aspen Center for Environmental Studies
  64. nuthatch sp. Sitta sp.
    # Count: 1
    Date:
    Observer: Mark Lang
    Location: Chapman Campground
  65. Pacific/Winter Wren Troglodytes pacificus/hiemalis
    # Count: 1
    Date:
    Observer: Steven Mlodinow
    Location: Snowmass
  66. wren sp. Troglodytidae sp.
    # Count: 1
    Date:
    Observer: Carolyn Corl
    Location: Redstone (town)
  67. Catharus sp. Catharus sp.
    # Count: 1
    Date:
    Observer: Nathan Goldberg
    Location: Rio Grande Trail--Herron Park to Cemetery Lane Bridge
  68. Red/Cassia Crossbill Loxia curvirostra/sinesciuris
    # Count: 1
    Date:
    Observer: Dick Filby
    Location: Chapman Campground
  69. grackle sp. Quiscalus sp.
    # Count: 1
    Date:
    Observer: Jason Gregg
    Location: Meadowood meadow
  70. Setophaga sp. Setophaga sp.
    # Count: 1
    Date:
    Observer: Sameer Apte
    Location: Capitol Creek Rd (Pitkin CR 9)--Monastery Rd to Snowmass Creek Rd
  71. 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
  72. passerine sp. Passeriformes sp.
    # Count: 1
    Date:
    Observer: Catherine Hagen
    Location: Aspen Golf Course, Colorado, US (39.201, -106.847)
  73. bird sp. Aves sp.
    # Count: 1
    Date:
    Observer: Jake Glassman
    Location: Prince Creek Rd, Basalt US-CO (39.3363,-107.1548)
  74. Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/traillii
    # Count: X
    Date:
    Observer: Justin Leahy
    Location: Redstone (town)