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Bird List

Updated ~7 seconds ago
190 All Years 93 This Year 2024 35 This Month Jun 2024
Last Observed First Observed High Count

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  1. Species Name
    Count
    Date
    Observer
    Location

Native and Naturalized (190)

  1. Yellow Warbler Setophaga petechia
    # Count: 12
    Date:
    Observer: Jeffrey Price
    Location: University of Colorado Boulder--South Campus
  2. American Redstart Setophaga ruticilla
    # Count: 1
    Date:
    Observer: Daniel Gelbart
    Location: University of Colorado Boulder--South Campus
  3. Black-throated Gray Warbler Setophaga nigrescens
    # Count: 1
    Date:
    Observer: Daniel Gelbart
    Location: University of Colorado Boulder--South Campus
  4. Nashville Warbler Leiothlypis ruficapilla
    # Count: 1
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  5. American Pipit Anthus rubescens
    # Count: 1
    Date:
    Observer: Owen Robertson
    Location: University of Colorado Boulder--South Campus
  6. Bank Swallow Riparia riparia
    # Count: 1
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  7. Osprey Pandion haliaetus
    # Count: 1
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  8. Blue-winged Teal Spatula discors
    # Count: 9
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  9. White-throated Sparrow Zonotrichia albicollis
    # Count: 1
    Date:
    Observer: Kenny Kenny
    Location: University of Colorado Boulder--South Campus
  10. Merlin Falco columbarius
    # Count: 1
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  11. Redhead Aythya americana
    # Count: 101
    Date:
    Observer: Susan Ringoen
    Location: University of Colorado Boulder--South Campus
  12. Northern Shrike Lanius borealis
    # Count: 2
    Date:
    Observer: Grant Medlin
    Location: University of Colorado Boulder--South Campus
  13. Mallard Anas platyrhynchos
    # Count: 210
    Date:
    Observer: Noah Brinkman
    Location: University of Colorado Boulder--South Campus
  14. Common Merganser Mergus merganser
    # Count: 10
    Date:
    Observer: Noah Brinkman
    Location: University of Colorado Boulder--South Campus
  15. Red-tailed Hawk Buteo jamaicensis
    # Count: 5
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  16. Barn Swallow Hirundo rustica
    # Count: 60
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  17. Wilson's Warbler Cardellina pusilla
    # Count: 4
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  18. Mourning Dove Zenaida macroura
    # Count: 26
    Date:
    Observer: Daniel Gelbart
    Location: University of Colorado Boulder--South Campus
  19. Blue Jay Cyanocitta cristata
    # Count: 12
    Date:
    Observer: Daniel Gelbart
    Location: University of Colorado Boulder--South Campus
  20. Lazuli Bunting Passerina amoena
    # Count: 4
    Date:
    Observer: Jeffrey Price
    Location: University of Colorado Boulder--South Campus
  21. Western Kingbird Tyrannus verticalis
    # Count: 3
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  22. Blue Grosbeak Passerina caerulea
    # Count: 4
    Date:
    Observer: Carolyn Beach
    Location: University of Colorado Boulder--South Campus
  23. Western Tanager Piranga ludoviciana
    # Count: 3
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  24. Dickcissel Spiza americana
    # Count: 1
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  25. Marsh Wren Cistothorus palustris
    # Count: 3
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  26. Savannah Sparrow Passerculus sandwichensis
    # Count: 2
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  27. Cliff Swallow Petrochelidon pyrrhonota
    # Count: 15
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  28. Gray Catbird Dumetella carolinensis
    # Count: 4
    Date:
    Observer: Daniel Gelbart
    Location: University of Colorado Boulder--South Campus
  29. MacGillivray's Warbler Geothlypis tolmiei
    # Count: 1
    Date:
    Observer: Daniel Gelbart
    Location: University of Colorado Boulder--South Campus
  30. Willow Flycatcher Empidonax traillii
    # Count: 1
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  31. Yellow-breasted Chat Icteria virens
    # Count: 1
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  32. Spotted Sandpiper Actitis macularius
    # Count: 6
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  33. Common Raven Corvus corax
    # Count: 5
    Date:
    Observer: Jeremy Alcorn
    Location: University of Colorado Boulder--South Campus
  34. Swainson's Thrush Catharus ustulatus
    # Count: 1
    Date:
    Observer: Jeremy Alcorn
    Location: University of Colorado Boulder--South Campus
  35. Wilson's Phalarope Phalaropus tricolor
    # Count: 4
    Date:
    Observer: Jeff Yegian
    Location: University of Colorado Boulder--South Campus
  36. Ruby-crowned Kinglet Corthylio calendula
    # Count: 2
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  37. Green-tailed Towhee Pipilo chlorurus
    # Count: 2
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  38. White-throated Swift Aeronautes saxatalis
    # Count: 3
    Date:
    Observer: Matt Fyfe
    Location: University of Colorado Boulder--South Campus
  39. Lesser Yellowlegs Tringa flavipes
    # Count: 1
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  40. Black Phoebe Sayornis nigricans
    # Count: 1
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  41. Sagebrush Sparrow Artemisiospiza nevadensis
    # Count: 1
    Date:
    Observer: Heather Hurford
    Location: University of Colorado Boulder--South Campus
  42. Greater Scaup Aythya marila
    # Count: 3
    Date:
    Observer: Jeff Yegian
    Location: University of Colorado Boulder--South Campus
  43. Bohemian Waxwing Bombycilla garrulus
    # Count: 25
    Date:
    Observer: Rob Cassady
    Location: University of Colorado Boulder--South Campus
  44. Gadwall Mareca strepera
    # Count: 45
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  45. Canvasback Aythya valisineria
    # Count: 8
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  46. Bushtit Psaltriparus minimus
    # Count: 12
    Date:
    Observer: Rob Cassady
    Location: University of Colorado Boulder--South Campus
  47. Evening Grosbeak Coccothraustes vespertinus
    # Count: 17
    Date:
    Observer: Thomas Heinrich
    Location: University of Colorado Boulder--South Campus
  48. Cassin's Finch Haemorhous cassinii
    # Count: 21
    Date:
    Observer: Thomas Heinrich
    Location: University of Colorado Boulder--South Campus
  49. Sharp-shinned Hawk Accipiter striatus
    # Count: 2
    Date:
    Observer: Jared Shorma
    Location: University of Colorado Boulder--South Campus
  50. Steller's Jay Cyanocitta stelleri
    # Count: 11
    Date:
    Observer: Jared Shorma
    Location: University of Colorado Boulder--South Campus
  51. Black-capped Chickadee Poecile atricapillus
    # Count: 18
    Date:
    Observer: Jared Shorma
    Location: University of Colorado Boulder--South Campus
  52. American Robin Turdus migratorius
    # Count: 86
    Date:
    Observer: Jared Shorma
    Location: University of Colorado Boulder--South Campus
  53. Harris's Sparrow Zonotrichia querula
    # Count: 1
    Date:
    Observer: Phil Lyon
    Location: University of Colorado Boulder--South Campus
  54. Cooper's Hawk Accipiter cooperii
    # Count: 2
    Date:
    Observer: Rob Cassady
    Location: University of Colorado Boulder--South Campus
  55. Mountain Chickadee Poecile gambeli
    # Count: 2
    Date:
    Observer: Eric DeFonso 🦑
    Location: University of Colorado Boulder--South Campus
  56. White-breasted Nuthatch Sitta carolinensis
    # Count: 2
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  57. American Wigeon Mareca americana
    # Count: 115
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  58. Red Crossbill Loxia curvirostra
    # Count: X
    Date:
    Observer: Heather Hurford
    Location: University of Colorado Boulder--South Campus
  59. Orange-crowned Warbler Leiothlypis celata
    # Count: 4
    Date:
    Observer: Jeremy Alcorn
    Location: University of Colorado Boulder--South Campus
  60. Cassin's Vireo Vireo cassinii
    # Count: 1
    Date:
    Observer: Matt Hofeditz
    Location: University of Colorado Boulder--South Campus
  61. Ferruginous Hawk Buteo regalis
    # Count: 1
    Date:
    Observer: James Millsaps
    Location: University of Colorado Boulder--South Campus
  62. Swainson's Hawk Buteo swainsoni
    # Count: 1
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  63. House Finch Haemorhous mexicanus
    # Count: 120
    Date:
    Observer: Daniel Gelbart
    Location: University of Colorado Boulder--South Campus
  64. Rufous Hummingbird Selasphorus rufus
    # Count: 1
    Date:
    Observer: Mark Price
    Location: University of Colorado Boulder--South Campus
  65. Say's Phoebe Sayornis saya
    # Count: 15
    Date:
    Observer: Mark Price
    Location: University of Colorado Boulder--South Campus
  66. Eastern Kingbird Tyrannus tyrannus
    # Count: 6
    Date:
    Observer: Mark Price
    Location: University of Colorado Boulder--South Campus
  67. Grasshopper Sparrow Ammodramus savannarum
    # Count: 4
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  68. House Wren Troglodytes aedon
    # Count: 10
    Date:
    Observer: Kenny Kenny
    Location: University of Colorado Boulder--South Campus
  69. Bullock's Oriole Icterus bullockii
    # Count: 10
    Date:
    Observer: Kenny Kenny
    Location: University of Colorado Boulder--South Campus
  70. Western Wood-Pewee Contopus sordidulus
    # Count: 11
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  71. Lincoln's Sparrow Melospiza lincolnii
    # Count: 2
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  72. Lark Sparrow Chondestes grammacus
    # Count: 36
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  73. White-crowned Sparrow Zonotrichia leucophrys
    # Count: 23
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  74. Snowy Egret Egretta thula
    # Count: 1
    Date:
    Observer: Steve Kajdasz
    Location: University of Colorado Boulder--South Campus
  75. Broad-winged Hawk Buteo platypterus
    # Count: 2
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  76. Cinnamon Teal Spatula cyanoptera
    # Count: 7
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  77. Golden Eagle Aquila chrysaetos
    # Count: 2
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  78. Rough-legged Hawk Buteo lagopus
    # Count: 1
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  79. Downy Woodpecker Dryobates pubescens
    # Count: 4
    Date:
    Observer: Margaret Snell
    Location: University of Colorado Boulder--South Campus
  80. Mountain Bluebird Sialia currucoides
    # Count: 50
    Date:
    Observer: Curtis Beimborn
    Location: University of Colorado Boulder--South Campus
  81. Hairy Woodpecker Dryobates villosus
    # Count: 2
    Date:
    Observer: Margaret Snell
    Location: University of Colorado Boulder--South Campus
  82. House Sparrow Passer domesticus
    # Count: 15
    Date:
    Observer: Deborah Bowman
    Location: University of Colorado Boulder--South Campus
  83. Lesser Scaup Aythya affinis
    # Count: 16
    Date:
    Observer: John Salisbury
    Location: University of Colorado Boulder--South Campus
  84. Bufflehead Bucephala albeola
    # Count: 15
    Date:
    Observer: Ric Olson
    Location: University of Colorado Boulder--South Campus
  85. Common Goldeneye Bucephala clangula
    # Count: 10
    Date:
    Observer: Spencer England
    Location: University of Colorado Boulder--South Campus
  86. Bald Eagle Haliaeetus leucocephalus
    # Count: 3
    Date:
    Observer: Valentina Roumi
    Location: University of Colorado Boulder--South Campus
  87. Common Redpoll Acanthis flammea
    # Count: 1
    Date:
    Observer: Kieran Schnitzspahn
    Location: University of Colorado Boulder--South Campus
  88. Eastern Bluebird Sialia sialis
    # Count: 15
    Date:
    Observer: willem van vliet-
    Location: University of Colorado Boulder--South Campus
  89. Song Sparrow Melospiza melodia
    # Count: 12
    Date:
    Observer: Amaya Tierramar
    Location: University of Colorado Boulder--South Campus
  90. Pine Siskin Spinus pinus
    # Count: 20
    Date:
    Observer: Kenny Kenny
    Location: University of Colorado Boulder--South Campus
  91. Green-winged Teal Anas crecca
    # Count: 41
    Date:
    Observer: Alexander Brown
    Location: University of Colorado Boulder--South Campus
  92. Northern Shoveler Spatula clypeata
    # Count: 23
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  93. Sandhill Crane Antigone canadensis
    # Count: 100
    Date:
    Observer: Kenny Kenny
    Location: University of Colorado Boulder--South Campus
  94. Wood Duck Aix sponsa
    # Count: 2
    Date:
    Observer: willem van vliet-
    Location: University of Colorado Boulder--South Campus
  95. Plumbeous Vireo Vireo plumbeus
    # Count: 1
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  96. Sage Thrasher Oreoscoptes montanus
    # Count: 2
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  97. Wilson's Snipe Gallinago delicata
    # Count: 19
    Date:
    Observer: Jeff Yegian
    Location: University of Colorado Boulder--South Campus
  98. Loggerhead Shrike Lanius ludovicianus
    # Count: 1
    Date:
    Observer: Jeff Yegian
    Location: University of Colorado Boulder--South Campus
  99. Brown Creeper Certhia americana
    # Count: 2
    Date:
    Observer: Jeff Yegian
    Location: University of Colorado Boulder--South Campus
  100. Great Horned Owl Bubo virginianus
    # Count: 2
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  101. Palm Warbler Setophaga palmarum
    # Count: 1
    Date:
    Observer: Norman Erthal
    Location: University of Colorado Boulder--South Campus
  102. Bobolink Dolichonyx oryzivorus
    # Count: 13
    Date:
    Observer: Jeff Dawson
    Location: University of Colorado Boulder--South Campus
  103. Chimney Swift Chaetura pelagica
    # Count: 1
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  104. Double-crested Cormorant Nannopterum auritum
    # Count: 7
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  105. Tennessee Warbler Leiothlypis peregrina
    # Count: 1
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  106. Great Blue Heron Ardea herodias
    # Count: 3
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  107. Franklin's Gull Leucophaeus pipixcan
    # Count: 200
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  108. Turkey Vulture Cathartes aura
    # Count: 21
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  109. Peregrine Falcon Falco peregrinus
    # Count: 2
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  110. American Goldfinch Spinus tristis
    # Count: 65
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  111. Hermit Thrush Catharus guttatus
    # Count: 3
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  112. Lesser Goldfinch Spinus psaltria
    # Count: 36
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  113. Warbling Vireo Vireo gilvus
    # Count: 3
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  114. Prairie Falcon Falco mexicanus
    # Count: 2
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  115. Northern Rough-winged Swallow Stelgidopteryx serripennis
    # Count: 5
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  116. Least Flycatcher Empidonax minimus
    # Count: 1
    Date:
    Observer: Alexander Brown
    Location: University of Colorado Boulder--South Campus
  117. Gray Flycatcher Empidonax wrightii
    # Count: 1
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  118. Blue-gray Gnatcatcher Polioptila caerulea
    # Count: 4
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  119. Clay-colored Sparrow Spizella pallida
    # Count: 10
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  120. Brewer's Sparrow Spizella breweri
    # Count: 15
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  121. Lark Bunting Calamospiza melanocorys
    # Count: 4
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  122. Vesper Sparrow Pooecetes gramineus
    # Count: 16
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  123. Virginia's Warbler Leiothlypis virginiae
    # Count: 1
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  124. Yellow-rumped Warbler Setophaga coronata
    # Count: 40
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  125. Swamp Sparrow Melospiza georgiana
    # Count: 1
    Date:
    Observer: Betty Glass
    Location: University of Colorado Boulder--South Campus
  126. Golden-crowned Sparrow Zonotrichia atricapilla
    # Count: 1
    Date:
    Observer: Walter Wehtje
    Location: University of Colorado Boulder--South Campus
  127. Cackling Goose Branta hutchinsii
    # Count: 45
    Date:
    Observer: Christian Nunes
    Location: University of Colorado Boulder--South Campus
  128. Pied-billed Grebe Podilymbus podiceps
    # Count: 3
    Date:
    Observer: Paul Barchilon
    Location: University of Colorado Boulder--South Campus
  129. Black-headed Grosbeak Pheucticus melanocephalus
    # Count: 1
    Date:
    Observer: Jeff Dawson
    Location: University of Colorado Boulder--South Campus
  130. Chipping Sparrow Spizella passerina
    # Count: 60
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  131. American Kestrel Falco sparverius
    # Count: 5
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  132. Pygmy Nuthatch Sitta pygmaea
    # Count: 1
    Date:
    Observer: Roxanne Van Hove
    Location: University of Colorado Boulder--South Campus
  133. Red-breasted Nuthatch Sitta canadensis
    # Count: 3
    Date:
    Observer: Catherine Labio
    Location: University of Colorado Boulder--South Campus
  134. Hooded Merganser Lophodytes cucullatus
    # Count: 8
    Date:
    Observer: Alexander Brown
    Location: University of Colorado Boulder--South Campus
  135. Cedar Waxwing Bombycilla cedrorum
    # Count: 61
    Date:
    Observer: Melissa Mezger
    Location: University of Colorado Boulder--South Campus
  136. American Coot Fulica americana
    # Count: 3
    Date:
    Observer: Paul Barchilon
    Location: University of Colorado Boulder--South Campus
  137. Ring-necked Duck Aythya collaris
    # Count: 111
    Date:
    Observer: Melissa Mezger
    Location: University of Colorado Boulder--South Campus
  138. Tundra Swan Cygnus columbianus
    # Count: 1
    Date:
    Observer: Melissa Mezger
    Location: University of Colorado Boulder--South Campus
  139. Spotted Towhee Pipilo maculatus
    # Count: 5
    Date:
    Observer: Melissa Mezger
    Location: University of Colorado Boulder--South Campus
  140. Eared Grebe Podiceps nigricollis
    # Count: 1
    Date:
    Observer: Peter Burke
    Location: University of Colorado Boulder--South Campus
  141. Winter Wren Troglodytes hiemalis
    # Count: 1
    Date:
    Observer: Peter Burke
    Location: University of Colorado Boulder--South Campus
  142. Northern Harrier Circus hudsonius
    # Count: 2
    Date:
    Observer: Melissa Mezger
    Location: University of Colorado Boulder--South Campus
  143. Townsend's Solitaire Myadestes townsendi
    # Count: 3
    Date:
    Observer: Melissa Mezger
    Location: University of Colorado Boulder--South Campus
  144. Woodhouse's Scrub-Jay Aphelocoma woodhouseii
    # Count: 2
    Date:
    Observer: Melissa Mezger
    Location: University of Colorado Boulder--South Campus
  145. Black-billed Magpie Pica hudsonia
    # Count: 11
    Date:
    Observer: Melissa Mezger
    Location: University of Colorado Boulder--South Campus
  146. European Starling Sturnus vulgaris
    # Count: 274
    Date:
    Observer: Melissa Mezger
    Location: University of Colorado Boulder--South Campus
  147. Belted Kingfisher Megaceryle alcyon
    # Count: 3
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  148. Dark-eyed Junco Junco hyemalis
    # Count: 31
    Date:
    Observer: Melissa Mezger
    Location: University of Colorado Boulder--South Campus
  149. Eurasian Collared-Dove Streptopelia decaocto
    # Count: 24
    Date:
    Observer: Melissa Mezger
    Location: University of Colorado Boulder--South Campus
  150. Sora Porzana carolina
    # Count: 3
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  151. American Avocet Recurvirostra americana
    # Count: 1
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  152. Solitary Sandpiper Tringa solitaria
    # Count: 4
    Date:
    Observer: Melissa Mezger
    Location: University of Colorado Boulder--South Campus
  153. Black-crowned Night Heron Nycticorax nycticorax
    # Count: 2
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  154. Violet-green Swallow Tachycineta thalassina
    # Count: 54
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  155. Common Grackle Quiscalus quiscula
    # Count: 300
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  156. Western Meadowlark Sturnella neglecta
    # Count: 48
    Date:
    Observer: Melissa Mezger
    Location: University of Colorado Boulder--South Campus
  157. Killdeer Charadrius vociferus
    # Count: 7
    Date:
    Observer: Melissa Mezger
    Location: University of Colorado Boulder--South Campus
  158. Western Bluebird Sialia mexicana
    # Count: 39
    Date:
    Observer: Melissa Mezger
    Location: University of Colorado Boulder--South Campus
  159. Greater Yellowlegs Tringa melanoleuca
    # Count: 4
    Date:
    Observer: Melissa Mezger
    Location: University of Colorado Boulder--South Campus
  160. American Crow Corvus brachyrhynchos
    # Count: 275
    Date:
    Observer: Melissa Mezger
    Location: University of Colorado Boulder--South Campus
  161. Horned Lark Eremophila alpestris
    # Count: 25
    Date:
    Observer: Melissa Mezger
    Location: University of Colorado Boulder--South Campus
  162. Canada Goose Branta canadensis
    # Count: 200
    Date:
    Observer: Melissa Mezger
    Location: University of Colorado Boulder--South Campus
  163. Ring-billed Gull Larus delawarensis
    # Count: 21
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  164. American Tree Sparrow Spizelloides arborea
    # Count: 50
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  165. Black-chinned Hummingbird Archilochus alexandri
    # Count: 3
    Date:
    Observer: Christian Nunes
    Location: University of Colorado Boulder--South Campus
  166. Cassin's Kingbird Tyrannus vociferans
    # Count: 1
    Date:
    Observer: Christian Nunes
    Location: University of Colorado Boulder--South Campus
  167. Tree Swallow Tachycineta bicolor
    # Count: 30
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  168. Red-breasted Merganser Mergus serrator
    # Count: 1
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  169. Rock Pigeon Columba livia
    # Count: 40
    Date:
    Observer: Catherine Labio
    Location: University of Colorado Boulder--South Campus
  170. Common Nighthawk Chordeiles minor
    # Count: 3
    Date:
    Observer: Catherine Labio
    Location: University of Colorado Boulder--South Campus
  171. Indigo Bunting Passerina cyanea
    # Count: 1
    Date:
    Observer: Catherine Labio
    Location: University of Colorado Boulder--South Campus
  172. Broad-tailed Hummingbird Selasphorus platycercus
    # Count: 5
    Date:
    Observer: Catherine Labio
    Location: University of Colorado Boulder--South Campus
  173. Black-throated Green Warbler Setophaga virens
    # Count: 1
    Date:
    Observer: Peter Gent
    Location: University of Colorado Boulder--South Campus
  174. Northern Flicker Colaptes auratus
    # Count: 16
    Date:
    Observer: Catherine Labio
    Location: University of Colorado Boulder--South Campus
  175. Pinyon Jay Gymnorhinus cyanocephalus
    # Count: 1
    Date:
    Observer: Catherine Labio
    Location: University of Colorado Boulder--South Campus
  176. Black-throated Sparrow Amphispiza bilineata
    # Count: 1
    Date:
    Observer: Nick Moore
    Location: University of Colorado Boulder--South Campus
  177. Virginia Rail Rallus limicola
    # Count: 3
    Date:
    Observer: Alexander Brown
    Location: University of Colorado Boulder--South Campus
  178. American Bittern Botaurus lentiginosus
    # Count: 2
    Date:
    Observer: Alexander Brown
    Location: University of Colorado Boulder--South Campus
  179. Yellow-headed Blackbird Xanthocephalus xanthocephalus
    # Count: 30
    Date:
    Observer: Alexander Brown
    Location: University of Colorado Boulder--South Campus
  180. Red-winged Blackbird Agelaius phoeniceus
    # Count: 500
    Date:
    Observer: Alexander Brown
    Location: University of Colorado Boulder--South Campus
  181. Brown-headed Cowbird Molothrus ater
    # Count: 24
    Date:
    Observer: Alexander Brown
    Location: University of Colorado Boulder--South Campus
  182. Red-naped Sapsucker Sphyrapicus nuchalis
    # Count: 1
    Date:
    Observer: Alexander Brown
    Location: University of Colorado Boulder--South Campus
  183. Brewer's Blackbird Euphagus cyanocephalus
    # Count: 4
    Date:
    Observer: Alexander Brown
    Location: University of Colorado Boulder--South Campus
  184. Black Swift Cypseloides niger
    # Count: 1
    Date:
    Observer: Alexander Brown
    Location: University of Colorado Boulder--South Campus
  185. Lewis's Woodpecker Melanerpes lewis
    # Count: 1
    Date:
    Observer: Alexander Brown
    Location: University of Colorado Boulder--South Campus
  186. Dusky Flycatcher Empidonax oberholseri
    # Count: 2
    Date:
    Observer: Alexander Brown
    Location: University of Colorado Boulder--South Campus
  187. Brown Thrasher Toxostoma rufum
    # Count: 1
    Date:
    Observer: Alexander Brown
    Location: University of Colorado Boulder--South Campus
  188. Common Yellowthroat Geothlypis trichas
    # Count: 20
    Date:
    Observer: Alexander Brown
    Location: University of Colorado Boulder--South Campus
  189. Varied Thrush Ixoreus naevius
    # Count: 1
    Date:
    Observer: Peter Gent
    Location: University of Colorado Boulder--South Campus
  190. Long-billed Curlew Numenius americanus
    # Count: 4
    Date:
    Observer: Alexander Brown
    Location: University of Colorado Boulder--South Campus

Hybrids (1)

  1. Black-capped x Mountain Chickadee (hybrid) Poecile atricapillus x gambeli
    # Count: 1
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus

Additional Taxa (38)

  1. hawk sp. Accipitridae sp. (hawk sp.)
    # Count: 1
    Date:
    Observer: Catherine Labio
    Location: University of Colorado Boulder--South Campus
  2. new world warbler sp. Parulidae sp.
    # Count: 1
    Date:
    Observer: Daniel Gelbart
    Location: University of Colorado Boulder--South Campus
  3. pigeon/dove sp. Columbidae sp.
    # Count: 3
    Date:
    Observer: Deb Piranian
    Location: University of Colorado Boulder--South Campus
  4. Empidonax sp. Empidonax sp.
    # Count: 1
    Date:
    Observer: Daniel Gelbart
    Location: University of Colorado Boulder--South Campus
  5. passerine sp. Passeriformes sp.
    # Count: 1
    Date:
    Observer: Jeffrey Price
    Location: University of Colorado Boulder--South Campus
  6. Loggerhead/Northern Shrike Lanius ludovicianus/borealis
    # Count: 1
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  7. crow/raven sp. Corvus sp.
    # Count: 1
    Date:
    Observer: Rob Cassady
    Location: University of Colorado Boulder--South Campus
  8. gull sp. Larinae sp.
    # Count: 3
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  9. nuthatch sp. Sitta sp.
    # Count: 2
    Date:
    Observer: Max Morganfield
    Location: University of Colorado Boulder--South Campus
  10. Buteo sp. Buteo sp.
    # Count: 1
    Date:
    Observer: Kieran Schnitzspahn
    Location: University of Colorado Boulder--South Campus
  11. Greater/Lesser Scaup Aythya marila/affinis
    # Count: 2
    Date:
    Observer: Andy Dorsey
    Location: University of Colorado Boulder--South Campus
  12. Spizella sp./American Tree Sparrow Spizella/Spizelloides sp.
    # Count: 20
    Date:
    Observer: Donna Sichko
    Location: University of Colorado Boulder--South Campus
  13. Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperii
    # Count: 1
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  14. new world goldfinch sp. Spinus sp. (goldfinch sp.)
    # Count: 10
    Date:
    Observer: Kenny Kenny
    Location: University of Colorado Boulder--South Campus
  15. blackbird sp. Icteridae sp.
    # Count: 30
    Date:
    Observer: Jeffrey Price
    Location: University of Colorado Boulder--South Campus
  16. Common/Barrow's Goldeneye Bucephala clangula/islandica
    # Count: 2
    Date:
    Observer: MaryJo Davies
    Location: University of Colorado Boulder--South Campus
  17. Black-capped/Mountain Chickadee Poecile atricapillus/gambeli
    # Count: 6
    Date:
    Observer: Philip McNichols
    Location: University of Colorado Boulder--South Campus
  18. Golden/Bald Eagle Aquila chrysaetos/Haliaeetus leucocephalus
    # Count: 1
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  19. new world sparrow sp. Passerellidae sp.
    # Count: 7
    Date:
    Observer: Kenny Kenny
    Location: University of Colorado Boulder--South Campus
  20. Accipiter sp. Accipiter sp.
    # Count: 1
    Date:
    Observer: Kenny Kenny
    Location: University of Colorado Boulder--South Campus
  21. large falcon sp. Falco sp. (large falcon sp.)
    # Count: 1
    Date:
    Observer: Glenn Gade
    Location: University of Colorado Boulder--South Campus
  22. swallow sp. Hirundinidae sp.
    # Count: 12
    Date:
    Observer: Jared Shorma
    Location: University of Colorado Boulder--South Campus
  23. swift sp. Apodidae sp.
    # Count: 1
    Date:
    Observer: Jared Shorma
    Location: University of Colorado Boulder--South Campus
  24. duck sp. Anatidae (duck sp.)
    # Count: 200
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  25. Cackling/Canada Goose Branta hutchinsii/canadensis
    # Count: 200
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  26. Aythya sp. Aythya sp.
    # Count: 1
    Date:
    Observer: Ted Floyd
    Location: University of Colorado Boulder--South Campus
  27. Spizella sp. Spizella sp.
    # Count: 1
    Date:
    Observer: Ted Floyd
    Location: University of Colorado Boulder--South Campus
  28. falcon sp. Falco sp.
    # Count: 1
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  29. eagle sp. Accipitridae sp. (eagle sp.)
    # Count: 1
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  30. raven sp. Corvus sp. (raven sp.)
    # Count: 1
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  31. merganser sp. Mergellus/Lophodytes/Mergus sp.
    # Count: 2
    Date:
    Observer: Lark Latch
    Location: University of Colorado Boulder--South Campus
  32. new world flycatcher sp. Tyrannidae sp.
    # Count: 2
    Date:
    Observer: Laura Steadman
    Location: University of Colorado Boulder--South Campus
  33. Ruby-throated/Black-chinned Hummingbird Archilochus colubris/alexandri
    # Count: 1
    Date:
    Observer: Catherine Labio
    Location: University of Colorado Boulder--South Campus
  34. grackle sp. Quiscalus sp.
    # Count: 5
    Date:
    Observer: Catherine Labio
    Location: University of Colorado Boulder--South Campus
  35. hummingbird sp. Trochilidae sp.
    # Count: 5
    Date:
    Observer: Catherine Labio
    Location: University of Colorado Boulder--South Campus
  36. chickadee sp. Poecile sp.
    # Count: 1
    Date:
    Observer: Catherine Labio
    Location: University of Colorado Boulder--South Campus
  37. bluebird sp. Sialia sp.
    # Count: 6
    Date:
    Observer: Catherine Labio
    Location: University of Colorado Boulder--South Campus
  38. Sturnella meadowlark sp. Sturnella sp.
    # Count: 20
    Date:
    Observer: Alexander Brown
    Location: University of Colorado Boulder--South Campus