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Bird List

Updated ~12 seconds ago
261 All Years 92 This Year 2024 0 This Month Jun 2024
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  1. Species Name
    Count
    Date
    Observer
    Location

Native and Naturalized (260)

  1. Cackling Goose Branta hutchinsii
    # Count: 225
    Date:
    Observer: Steven Mlodinow
    Location: Two Buttes Reservoir
  2. Wilson's Phalarope Phalaropus tricolor
    # Count: 130
    Date:
    Observer: Doug Ward
    Location: Two Buttes Reservoir
  3. Snow Goose Anser caerulescens
    # Count: 100
    Date:
    Observer: Jon Horn
    Location: Two Buttes Reservoir
  4. Long-billed Dowitcher Limnodromus scolopaceus
    # Count: 44
    Date:
    Observer: Steven Mlodinow
    Location: Two Buttes Reservoir
  5. Cliff Swallow Petrochelidon pyrrhonota
    # Count: 40
    Date:
    Observer: Jesse Casias
    Location: Two Buttes Reservoir
  6. Ruddy Duck Oxyura jamaicensis
    # Count: 35
    Date:
    Observer: Doug Ward
    Location: Two Buttes Reservoir
  7. Black Tern Chlidonias niger
    # Count: 35
    Date:
    Observer: Glenn Walbek
    Location: Two Buttes Reservoir
  8. Common Merganser Mergus merganser
    # Count: 33
    Date:
    Observer: Brian Genge
    Location: Two Buttes Reservoir
  9. Lark Bunting Calamospiza melanocorys
    # Count: 28
    Date:
    Observer: Darth Aves
    Location: Two Buttes Reservoir
  10. Green-winged Teal Anas crecca
    # Count: 16
    Date:
    Observer: Doug Ward
    Location: Two Buttes Reservoir
  11. Wild Turkey Meleagris gallopavo
    # Count: 15
    Date:
    Observer: Ben Sampson
    Location: Two Buttes Reservoir
  12. Gadwall Mareca strepera
    # Count: 14
    Date:
    Observer: Doug Ward
    Location: Two Buttes Reservoir
  13. White-faced Ibis Plegadis chihi
    # Count: 14
    Date:
    Observer: Kathy Mihm Dunning
    Location: Two Buttes Reservoir
  14. Eastern Bluebird Sialia sialis
    # Count: 13
    Date:
    Observer: Christian Nunes
    Location: Two Buttes Reservoir
  15. Scaled Quail Callipepla squamata
    # Count: 12
    Date:
    Observer: Chris Petrizzo
    Location: Two Buttes Reservoir
  16. Pinyon Jay Gymnorhinus cyanocephalus
    # Count: 10
    Date:
    Observer: Van Remsen
    Location: Two Buttes Reservoir
  17. White-throated Sparrow Zonotrichia albicollis
    # Count: 10
    Date:
    Observer: Glenn Walbek
    Location: Two Buttes Reservoir
  18. American Goldfinch Spinus tristis
    # Count: 9
    Date:
    Observer: Jeremy Alcorn
    Location: Two Buttes Reservoir
  19. Yellow-headed Blackbird Xanthocephalus xanthocephalus
    # Count: 9
    Date:
    Observer: John Haycraft
    Location: Two Buttes Reservoir
  20. Burrowing Owl Athene cunicularia
    # Count: 8
    Date:
    Observer: Jeremy Alcorn
    Location: Two Buttes Reservoir
  21. Swainson's Thrush Catharus ustulatus
    # Count: 8
    Date:
    Observer: Brian Genge
    Location: Two Buttes Reservoir
  22. Lapland Longspur Calcarius lapponicus
    # Count: 8
    Date:
    Observer: Brian Genge
    Location: Two Buttes Reservoir
  23. Semipalmated Plover Charadrius semipalmatus
    # Count: 7
    Date:
    Observer: Kathy Mihm Dunning
    Location: Two Buttes Reservoir
  24. Ring-billed Gull Larus delawarensis
    # Count: 7
    Date:
    Observer: Doug Ward
    Location: Two Buttes Reservoir
  25. Mountain Bluebird Sialia currucoides
    # Count: 7
    Date:
    Observer: Mark Peterson
    Location: Two Buttes Reservoir
  26. Red Crossbill Loxia curvirostra
    # Count: 7
    Date:
    Observer: Glenn Walbek
    Location: Two Buttes Reservoir
  27. Chipping Sparrow Spizella passerina
    # Count: 7
    Date:
    Observer: Scott Shaum
    Location: Two Buttes Reservoir
  28. Eared Grebe Podiceps nigricollis
    # Count: 6
    Date:
    Observer: Doug Ward
    Location: Two Buttes Reservoir
  29. Lesser Yellowlegs Tringa flavipes
    # Count: 6
    Date:
    Observer: Kathy Mihm Dunning
    Location: Two Buttes Reservoir
  30. American Pipit Anthus rubescens
    # Count: 6
    Date:
    Observer: Norman Erthal
    Location: Two Buttes Reservoir
  31. Bufflehead Bucephala albeola
    # Count: 5
    Date:
    Observer: Doug Ward
    Location: Two Buttes Reservoir
  32. Hooded Merganser Lophodytes cucullatus
    # Count: 5
    Date:
    Observer: Mark Peterson
    Location: Two Buttes Reservoir
  33. Upland Sandpiper Bartramia longicauda
    # Count: 5
    Date:
    Observer: Glenn Walbek
    Location: Two Buttes Reservoir
  34. Blue-winged Teal Spatula discors
    # Count: 4
    Date:
    Observer: Scott Dieni
    Location: Two Buttes Reservoir
  35. American Wigeon Mareca americana
    # Count: 4
    Date:
    Observer: Doug Ward
    Location: Two Buttes Reservoir
  36. Lesser Scaup Aythya affinis
    # Count: 4
    Date:
    Observer: Doug Ward
    Location: Two Buttes Reservoir
  37. Spotted Sandpiper Actitis macularius
    # Count: 4
    Date:
    Observer: Doug Ward
    Location: Two Buttes Reservoir
  38. Western Sandpiper Calidris mauri
    # Count: 4
    Date:
    Observer: Scott Shaum
    Location: Two Buttes Reservoir
  39. Franklin's Gull Leucophaeus pipixcan
    # Count: 4
    Date:
    Observer: Doug Ward
    Location: Two Buttes Reservoir
  40. Forster's Tern Sterna forsteri
    # Count: 4
    Date:
    Observer: Scott Dieni
    Location: Two Buttes Reservoir
  41. American White Pelican Pelecanus erythrorhynchos
    # Count: 4
    Date:
    Observer: Scott Dieni
    Location: Two Buttes Reservoir
  42. Turkey Vulture Cathartes aura
    # Count: 4
    Date:
    Observer: Doug Ward
    Location: Two Buttes Reservoir
  43. Black-billed Magpie Pica hudsonia
    # Count: 4
    Date:
    Observer: Van Truan
    Location: Two Buttes Reservoir
  44. Vesper Sparrow Pooecetes gramineus
    # Count: 4
    Date:
    Observer: Steven Mlodinow
    Location: Two Buttes Reservoir
  45. Northern Pintail Anas acuta
    # Count: 3
    Date:
    Observer: Kathy Mihm Dunning
    Location: Two Buttes Reservoir
  46. Ring-necked Duck Aythya collaris
    # Count: 3
    Date:
    Observer: Doug Ward
    Location: Two Buttes Reservoir
  47. Red-breasted Merganser Mergus serrator
    # Count: 3
    Date:
    Observer: Mark Peterson
    Location: Two Buttes Reservoir
  48. American Coot Fulica americana
    # Count: 3
    Date:
    Observer: Scott Dieni
    Location: Two Buttes Reservoir
  49. American Avocet Recurvirostra americana
    # Count: 3
    Date:
    Observer: Kathy Mihm Dunning
    Location: Two Buttes Reservoir
  50. Greater Yellowlegs Tringa melanoleuca
    # Count: 3
    Date:
    Observer: Doug Ward
    Location: Two Buttes Reservoir
  51. Baird's Sandpiper Calidris bairdii
    # Count: 3
    Date:
    Observer: Kathy Mihm Dunning
    Location: Two Buttes Reservoir
  52. Bank Swallow Riparia riparia
    # Count: 3
    Date:
    Observer: Doug Ward
    Location: Two Buttes Reservoir
  53. Tree Swallow Tachycineta bicolor
    # Count: 3
    Date:
    Observer: Nathan Pieplow
    Location: Two Buttes Reservoir
  54. Ruby-crowned Kinglet Corthylio calendula
    # Count: 3
    Date:
    Observer: Glenn Walbek
    Location: Two Buttes Reservoir
  55. Curve-billed Thrasher Toxostoma curvirostre
    # Count: 3
    Date:
    Observer: Ben Sampson
    Location: Two Buttes Reservoir
  56. American Robin Turdus migratorius
    # Count: 3
    Date:
    Observer: Mark Peterson
    Location: Two Buttes Reservoir
  57. Evening Grosbeak Coccothraustes vespertinus
    # Count: 3
    Date:
    Observer: Van Remsen
    Location: Two Buttes Reservoir
  58. Dark-eyed Junco Junco hyemalis
    # Count: 3
    Date:
    Observer: Mark Peterson
    Location: Two Buttes Reservoir
  59. Harris's Sparrow Zonotrichia querula
    # Count: 3
    Date:
    Observer: Van Remsen
    Location: Two Buttes Reservoir
  60. Rufous-crowned Sparrow Aimophila ruficeps
    # Count: 3
    Date:
    Observer: Ben Sampson
    Location: Two Buttes Reservoir
  61. Western Meadowlark Sturnella neglecta
    # Count: 3
    Date:
    Observer: Doug Ward
    Location: Two Buttes Reservoir
  62. Brewer's Blackbird Euphagus cyanocephalus
    # Count: 3
    Date:
    Observer: Scott Shaum
    Location: Two Buttes Reservoir
  63. Blue Grosbeak Passerina caerulea
    # Count: 3
    Date:
    Observer: Logan Smith
    Location: Two Buttes Reservoir
  64. Canada Goose Branta canadensis
    # Count: 2
    Date:
    Observer: Scott Shaum
    Location: Two Buttes Reservoir
  65. Cinnamon Teal Spatula cyanoptera
    # Count: 2
    Date:
    Observer: Brandon K. Percival
    Location: Two Buttes Reservoir
  66. Mallard Anas platyrhynchos
    # Count: 2
    Date:
    Observer: Scott Dieni
    Location: Two Buttes Reservoir
  67. Redhead Aythya americana
    # Count: 2
    Date:
    Observer: Kathy Mihm Dunning
    Location: Two Buttes Reservoir
  68. Rock Pigeon Columba livia
    # Count: 2
    Date:
    Observer: Scott Shaum
    Location: Two Buttes Reservoir
  69. Eurasian Collared-Dove Streptopelia decaocto
    # Count: 2
    Date:
    Observer: Glenn Walbek
    Location: Two Buttes Reservoir
  70. Mourning Dove Zenaida macroura
    # Count: 2
    Date:
    Observer: Scott Dieni
    Location: Two Buttes Reservoir
  71. Black-necked Stilt Himantopus mexicanus
    # Count: 2
    Date:
    Observer: Scott Shaum
    Location: Two Buttes Reservoir
  72. Marbled Godwit Limosa fedoa
    # Count: 2
    Date:
    Observer: Scott Shaum
    Location: Two Buttes Reservoir
  73. Red-necked Phalarope Phalaropus lobatus
    # Count: 2
    Date:
    Observer: Dan Brooke
    Location: Two Buttes Reservoir
  74. Stilt Sandpiper Calidris himantopus
    # Count: 2
    Date:
    Observer: Steven Mlodinow
    Location: Two Buttes Reservoir
  75. Least Sandpiper Calidris minutilla
    # Count: 2
    Date:
    Observer: Steven Mlodinow
    Location: Two Buttes Reservoir
  76. Semipalmated Sandpiper Calidris pusilla
    # Count: 2
    Date:
    Observer: Norman Erthal
    Location: Two Buttes Reservoir
  77. Western Cattle Egret Bubulcus ibis
    # Count: 2
    Date:
    Observer: Scott Shaum
    Location: Two Buttes Reservoir
  78. Bald Eagle Haliaeetus leucocephalus
    # Count: 2
    Date:
    Observer: Scott Dieni
    Location: Two Buttes Reservoir
  79. Red-headed Woodpecker Melanerpes erythrocephalus
    # Count: 2
    Date:
    Observer: Brian Genge
    Location: Two Buttes Reservoir
  80. Northern Flicker Colaptes auratus
    # Count: 2
    Date:
    Observer: Mark Peterson
    Location: Two Buttes Reservoir
  81. Western Wood-Pewee Contopus sordidulus
    # Count: 2
    Date:
    Observer: Jim Malcom
    Location: Two Buttes Reservoir
  82. Least Flycatcher Empidonax minimus
    # Count: 2
    Date:
    Observer: Jim Malcom
    Location: Two Buttes Reservoir
  83. Eastern Kingbird Tyrannus tyrannus
    # Count: 2
    Date:
    Observer: Brian Genge
    Location: Two Buttes Reservoir
  84. American Crow Corvus brachyrhynchos
    # Count: 2
    Date:
    Observer: Jeremy Alcorn
    Location: Two Buttes Reservoir
  85. Chihuahuan Raven Corvus cryptoleucus
    # Count: 2
    Date:
    Observer: Doris Ratchford
    Location: Two Buttes Reservoir
  86. Common Raven Corvus corax
    # Count: 2
    Date:
    Observer: Steven Mlodinow
    Location: Two Buttes Reservoir
  87. Mountain Chickadee Poecile gambeli
    # Count: 2
    Date:
    Observer: Ben Sampson
    Location: Two Buttes Reservoir
  88. Horned Lark Eremophila alpestris
    # Count: 2
    Date:
    Observer: Doug Ward
    Location: Two Buttes Reservoir
  89. Northern Rough-winged Swallow Stelgidopteryx serripennis
    # Count: 2
    Date:
    Observer: Glenn Walbek
    Location: Two Buttes Reservoir
  90. Barn Swallow Hirundo rustica
    # Count: 2
    Date:
    Observer: Doug Ward
    Location: Two Buttes Reservoir
  91. Marsh Wren Cistothorus palustris
    # Count: 2
    Date:
    Observer: Aaron Shipe
    Location: Two Buttes Reservoir
  92. Northern Mockingbird Mimus polyglottos
    # Count: 2
    Date:
    Observer: Scott Dieni
    Location: Two Buttes Reservoir
  93. House Sparrow Passer domesticus
    # Count: 2
    Date:
    Observer: Diane Roberts
    Location: Two Buttes Reservoir
  94. House Finch Haemorhous mexicanus
    # Count: 2
    Date:
    Observer: Bill Wright_cc
    Location: Two Buttes Reservoir
  95. Pine Siskin Spinus pinus
    # Count: 2
    Date:
    Observer: Ben Sampson
    Location: Two Buttes Reservoir
  96. Thick-billed Longspur Rhynchophanes mccownii
    # Count: 2
    Date:
    Observer: Van Remsen
    Location: Two Buttes Reservoir
  97. Clay-colored Sparrow Spizella pallida
    # Count: 2
    Date:
    Observer: David Suddjian
    Location: Two Buttes Reservoir
  98. Field Sparrow Spizella pusilla
    # Count: 2
    Date:
    Observer: Ben Sampson
    Location: Two Buttes Reservoir
  99. Lark Sparrow Chondestes grammacus
    # Count: 2
    Date:
    Observer: Doug Ward
    Location: Two Buttes Reservoir
  100. American Tree Sparrow Spizelloides arborea
    # Count: 2
    Date:
    Observer: Mark Peterson
    Location: Two Buttes Reservoir
  101. White-crowned Sparrow Zonotrichia leucophrys
    # Count: 2
    Date:
    Observer: Doug Ward
    Location: Two Buttes Reservoir
  102. Green-tailed Towhee Pipilo chlorurus
    # Count: 2
    Date:
    Observer: Jim Malcom
    Location: Two Buttes Reservoir
  103. Yellow-breasted Chat Icteria virens
    # Count: 2
    Date:
    Observer: Jim Malcom
    Location: Two Buttes Reservoir
  104. Bullock's Oriole Icterus bullockii
    # Count: 2
    Date:
    Observer: Scott Dieni
    Location: Two Buttes Reservoir
  105. Red-winged Blackbird Agelaius phoeniceus
    # Count: 2
    Date:
    Observer: Doug Ward
    Location: Two Buttes Reservoir
  106. Common Grackle Quiscalus quiscula
    # Count: 2
    Date:
    Observer: Scott Dieni
    Location: Two Buttes Reservoir
  107. Rose-breasted Grosbeak Pheucticus ludovicianus
    # Count: 2
    Date:
    Observer: Michelle Robbins
    Location: Two Buttes Reservoir
  108. Black-headed Grosbeak Pheucticus melanocephalus
    # Count: 2
    Date:
    Observer: Darth Aves
    Location: Two Buttes Reservoir
  109. Trumpeter Swan Cygnus buccinator
    # Count: 1
    Date:
    Observer: Colorado Bird Records Committee
    Location: Two Buttes Reservoir
  110. Wood Duck Aix sponsa
    # Count: 1
    Date:
    Observer: Kathy Mihm Dunning
    Location: Two Buttes Reservoir
  111. Northern Shoveler Spatula clypeata
    # Count: 1
    Date:
    Observer: Scott Dieni
    Location: Two Buttes Reservoir
  112. Mexican Duck Anas diazi
    # Count: 1
    Date:
    Observer: Steven Mlodinow
    Location: Two Buttes Reservoir
  113. Canvasback Aythya valisineria
    # Count: 1
    Date:
    Observer: michelle trotter
    Location: Two Buttes Reservoir
  114. Greater Scaup Aythya marila
    # Count: 1
    Date:
    Observer: Derek Courtney
    Location: Two Buttes Reservoir
  115. Common Goldeneye Bucephala clangula
    # Count: 1
    Date:
    Observer: David Dowell
    Location: Two Buttes Reservoir
  116. Northern Bobwhite Colinus virginianus
    # Count: 1
    Date:
    Observer: Scott Dieni
    Location: Two Buttes Reservoir
  117. Pied-billed Grebe Podilymbus podiceps
    # Count: 1
    Date:
    Observer: Scott Dieni
    Location: Two Buttes Reservoir
  118. Horned Grebe Podiceps auritus
    # Count: 1
    Date:
    Observer: Mark Peterson
    Location: Two Buttes Reservoir
  119. Western Grebe Aechmophorus occidentalis
    # Count: 1
    Date:
    Observer: Doug Ward
    Location: Two Buttes Reservoir
  120. Clark's Grebe Aechmophorus clarkii
    # Count: 1
    Date:
    Observer: Kathy Mihm Dunning
    Location: Two Buttes Reservoir
  121. Greater Roadrunner Geococcyx californianus
    # Count: 1
    Date:
    Observer: Ben Sampson
    Location: Two Buttes Reservoir
  122. Yellow-billed Cuckoo Coccyzus americanus
    # Count: 1
    Date:
    Observer: Jim Malcom
    Location: Two Buttes Reservoir
  123. Common Nighthawk Chordeiles minor
    # Count: 1
    Date:
    Observer: Brian Genge
    Location: Two Buttes Reservoir
  124. Sora Porzana carolina
    # Count: 1
    Date:
    Observer: Laurens Halsey
    Location: Two Buttes Reservoir
  125. Sandhill Crane Antigone canadensis
    # Count: 1
    Date:
    Observer: Mark Peterson
    Location: Two Buttes Reservoir
  126. Black-bellied Plover Pluvialis squatarola
    # Count: 1
    Date:
    Observer: Mark Peterson
    Location: Two Buttes Reservoir
  127. American Golden-Plover Pluvialis dominica
    # Count: 1
    Date:
    Observer: David Dowell
    Location: Two Buttes Reservoir
  128. Killdeer Charadrius vociferus
    # Count: 1
    Date:
    Observer: Scott Dieni
    Location: Two Buttes Reservoir
  129. Mountain Plover Anarhynchus montanus
    # Count: 1
    Date:
    Observer: William Kaempfer
    Location: Two Buttes Reservoir
  130. Long-billed Curlew Numenius americanus
    # Count: 1
    Date:
    Observer: David Leatherman
    Location: Two Buttes Reservoir
  131. Short-billed Dowitcher Limnodromus griseus
    # Count: 1
    Date:
    Observer: Mark Peterson
    Location: Two Buttes Reservoir
  132. Wilson's Snipe Gallinago delicata
    # Count: 1
    Date:
    Observer: Glenn Walbek
    Location: Two Buttes Reservoir
  133. Red Phalarope Phalaropus fulicarius
    # Count: 1
    Date:
    Observer: Mark Peterson
    Location: Two Buttes Reservoir
  134. Solitary Sandpiper Tringa solitaria
    # Count: 1
    Date:
    Observer: Nathan Pieplow
    Location: Two Buttes Reservoir
  135. Willet Tringa semipalmata
    # Count: 1
    Date:
    Observer: Steven Mlodinow
    Location: Two Buttes Reservoir
  136. Sanderling Calidris alba
    # Count: 1
    Date:
    Observer: Tony Leukering
    Location: Two Buttes Reservoir
  137. Pectoral Sandpiper Calidris melanotos
    # Count: 1
    Date:
    Observer: Norman Erthal
    Location: Two Buttes Reservoir
  138. Bonaparte's Gull Chroicocephalus philadelphia
    # Count: 1
    Date:
    Observer: Steven Mlodinow
    Location: Two Buttes Reservoir
  139. Short-billed Gull Larus brachyrhynchus
    # Count: 1
    Date:
    Observer: Mark Peterson
    Location: Two Buttes Reservoir
  140. Caspian Tern Hydroprogne caspia
    # Count: 1
    Date:
    Observer: Kathy Mihm Dunning
    Location: Two Buttes Reservoir
  141. Common Tern Sterna hirundo
    # Count: 1
    Date:
    Observer: Tony Leukering
    Location: Two Buttes Reservoir
  142. Common Loon Gavia immer
    # Count: 1
    Date:
    Observer: Mark Peterson
    Location: Two Buttes Reservoir
  143. Double-crested Cormorant Nannopterum auritum
    # Count: 1
    Date:
    Observer: Doug Ward
    Location: Two Buttes Reservoir
  144. American Bittern Botaurus lentiginosus
    # Count: 1
    Date:
    Observer: Randall Siebert
    Location: Two Buttes Reservoir
  145. Black-crowned Night Heron Nycticorax nycticorax
    # Count: 1
    Date:
    Observer: David Wolf
    Location: Two Buttes Reservoir
  146. Snowy Egret Egretta thula
    # Count: 1
    Date:
    Observer: Scott Shaum
    Location: Two Buttes Reservoir
  147. Great Egret Ardea alba
    # Count: 1
    Date:
    Observer: Scott Shaum
    Location: Two Buttes Reservoir
  148. Great Blue Heron Ardea herodias
    # Count: 1
    Date:
    Observer: Scott Dieni
    Location: Two Buttes Reservoir
  149. Osprey Pandion haliaetus
    # Count: 1
    Date:
    Observer: Doug Ward
    Location: Two Buttes Reservoir
  150. Golden Eagle Aquila chrysaetos
    # Count: 1
    Date:
    Observer: David Suddjian
    Location: Two Buttes Reservoir
  151. Northern Harrier Circus hudsonius
    # Count: 1
    Date:
    Observer: Scott Shaum
    Location: Two Buttes Reservoir
  152. Sharp-shinned Hawk Accipiter striatus
    # Count: 1
    Date:
    Observer: Glenn Walbek
    Location: Two Buttes Reservoir
  153. Cooper's Hawk Accipiter cooperii
    # Count: 1
    Date:
    Observer: Gloria Nikolai
    Location: Two Buttes Reservoir
  154. Broad-winged Hawk Buteo platypterus
    # Count: 1
    Date:
    Observer: Doris Ratchford
    Location: Two Buttes Reservoir
  155. Swainson's Hawk Buteo swainsoni
    # Count: 1
    Date:
    Observer: Doug Ward
    Location: Two Buttes Reservoir
  156. Red-tailed Hawk Buteo jamaicensis
    # Count: 1
    Date:
    Observer: Edward Landi
    Location: Two Buttes Reservoir
  157. Ferruginous Hawk Buteo regalis
    # Count: 1
    Date:
    Observer: Darth Aves
    Location: Two Buttes Reservoir
  158. Western Screech-Owl Megascops kennicottii
    # Count: 1
    Date:
    Observer: Jesse Casias
    Location: Two Buttes Reservoir
  159. Great Horned Owl Bubo virginianus
    # Count: 1
    Date:
    Observer: Glenn Walbek
    Location: Two Buttes Reservoir
  160. Belted Kingfisher Megaceryle alcyon
    # Count: 1
    Date:
    Observer: Scott Shaum
    Location: Two Buttes Reservoir
  161. Yellow-bellied Sapsucker Sphyrapicus varius
    # Count: 1
    Date:
    Observer: Jeremy Alcorn
    Location: Two Buttes Reservoir
  162. Red-bellied Woodpecker Melanerpes carolinus
    # Count: 1
    Date:
    Observer: Jesse Casias
    Location: Two Buttes Reservoir
  163. Downy Woodpecker Dryobates pubescens
    # Count: 1
    Date:
    Observer: Doug Kibbe
    Location: Two Buttes Reservoir
  164. Ladder-backed Woodpecker Dryobates scalaris
    # Count: 1
    Date:
    Observer: Mark Peterson
    Location: Two Buttes Reservoir
  165. Hairy Woodpecker Dryobates villosus
    # Count: 1
    Date:
    Observer: Ben Sampson
    Location: Two Buttes Reservoir
  166. American Kestrel Falco sparverius
    # Count: 1
    Date:
    Observer: Steven Mlodinow
    Location: Two Buttes Reservoir
  167. Merlin Falco columbarius
    # Count: 1
    Date:
    Observer: Glenn Walbek
    Location: Two Buttes Reservoir
  168. Peregrine Falcon Falco peregrinus
    # Count: 1
    Date:
    Observer: Mark Peterson
    Location: Two Buttes Reservoir
  169. Prairie Falcon Falco mexicanus
    # Count: 1
    Date:
    Observer: Daniel Maynard
    Location: Two Buttes Reservoir
  170. Olive-sided Flycatcher Contopus cooperi
    # Count: 1
    Date:
    Observer: Jim Malcom
    Location: Two Buttes Reservoir
  171. Willow Flycatcher Empidonax traillii
    # Count: 1
    Date:
    Observer: Nathan Pieplow
    Location: Two Buttes Reservoir
  172. Eastern Phoebe Sayornis phoebe
    # Count: 1
    Date:
    Observer: Jesse Casias
    Location: Two Buttes Reservoir
  173. Say's Phoebe Sayornis saya
    # Count: 1
    Date:
    Observer: Scott Dieni
    Location: Two Buttes Reservoir
  174. Ash-throated Flycatcher Myiarchus cinerascens
    # Count: 1
    Date:
    Observer: Doug Ward
    Location: Two Buttes Reservoir
  175. Cassin's Kingbird Tyrannus vociferans
    # Count: 1
    Date:
    Observer: Steven Mlodinow
    Location: Two Buttes Reservoir
  176. Western Kingbird Tyrannus verticalis
    # Count: 1
    Date:
    Observer: Scott Dieni
    Location: Two Buttes Reservoir
  177. Loggerhead Shrike Lanius ludovicianus
    # Count: 1
    Date:
    Observer: Scott Shaum
    Location: Two Buttes Reservoir
  178. Northern Shrike Lanius borealis
    # Count: 1
    Date:
    Observer: Mark Peterson
    Location: Two Buttes Reservoir
  179. Blue Jay Cyanocitta cristata
    # Count: 1
    Date:
    Observer: Jeremy Alcorn
    Location: Two Buttes Reservoir
  180. Woodhouse's Scrub-Jay Aphelocoma woodhouseii
    # Count: 1
    Date:
    Observer: Ben Sampson
    Location: Two Buttes Reservoir
  181. Red-breasted Nuthatch Sitta canadensis
    # Count: 1
    Date:
    Observer: Jim Malcom
    Location: Two Buttes Reservoir
  182. Brown Creeper Certhia americana
    # Count: 1
    Date:
    Observer: Van Truan
    Location: Two Buttes Reservoir
  183. Blue-gray Gnatcatcher Polioptila caerulea
    # Count: 1
    Date:
    Observer: Logan Smith
    Location: Two Buttes Reservoir
  184. Rock Wren Salpinctes obsoletus
    # Count: 1
    Date:
    Observer: Scott Shaum
    Location: Two Buttes Reservoir
  185. Canyon Wren Catherpes mexicanus
    # Count: 1
    Date:
    Observer: Glenn Walbek
    Location: Two Buttes Reservoir
  186. House Wren Troglodytes aedon
    # Count: 1
    Date:
    Observer: Daniel Horton
    Location: Two Buttes Reservoir
  187. Bewick's Wren Thryomanes bewickii
    # Count: 1
    Date:
    Observer: Jim Malcom
    Location: Two Buttes Reservoir
  188. European Starling Sturnus vulgaris
    # Count: 1
    Date:
    Observer: Doug Ward
    Location: Two Buttes Reservoir
  189. Gray Catbird Dumetella carolinensis
    # Count: 1
    Date:
    Observer: Glenn Walbek
    Location: Two Buttes Reservoir
  190. Brown Thrasher Toxostoma rufum
    # Count: 1
    Date:
    Observer: Brandon K. Percival
    Location: Two Buttes Reservoir
  191. Sage Thrasher Oreoscoptes montanus
    # Count: 1
    Date:
    Observer: Aaron Shipe
    Location: Two Buttes Reservoir
  192. Townsend's Solitaire Myadestes townsendi
    # Count: 1
    Date:
    Observer: Alec Hopping
    Location: Two Buttes Reservoir
  193. Hermit Thrush Catharus guttatus
    # Count: 1
    Date:
    Observer: Jim Malcom
    Location: Two Buttes Reservoir
  194. Cassin's Finch Haemorhous cassinii
    # Count: 1
    Date:
    Observer: Van Remsen
    Location: Two Buttes Reservoir
  195. Chestnut-collared Longspur Calcarius ornatus
    # Count: 1
    Date:
    Observer: Glenn Walbek
    Location: Two Buttes Reservoir
  196. Cassin's Sparrow Peucaea cassinii
    # Count: 1
    Date:
    Observer: Steven Mlodinow
    Location: Two Buttes Reservoir
  197. Grasshopper Sparrow Ammodramus savannarum
    # Count: 1
    Date:
    Observer: Diane Roberts
    Location: Two Buttes Reservoir
  198. Brewer's Sparrow Spizella breweri
    # Count: 1
    Date:
    Observer: Steven Mlodinow
    Location: Two Buttes Reservoir
  199. Savannah Sparrow Passerculus sandwichensis
    # Count: 1
    Date:
    Observer: Steven Mlodinow
    Location: Two Buttes Reservoir
  200. Song Sparrow Melospiza melodia
    # Count: 1
    Date:
    Observer: Jeremy Alcorn
    Location: Two Buttes Reservoir
  201. Lincoln's Sparrow Melospiza lincolnii
    # Count: 1
    Date:
    Observer: Aaron Shipe
    Location: Two Buttes Reservoir
  202. Swamp Sparrow Melospiza georgiana
    # Count: 1
    Date:
    Observer: Glenn Walbek
    Location: Two Buttes Reservoir
  203. Spotted Towhee Pipilo maculatus
    # Count: 1
    Date:
    Observer: Glenn Walbek
    Location: Two Buttes Reservoir
  204. Orchard Oriole Icterus spurius
    # Count: 1
    Date:
    Observer: Doug Ward
    Location: Two Buttes Reservoir
  205. Baltimore Oriole Icterus galbula
    # Count: 1
    Date:
    Observer: Steven Mlodinow
    Location: Two Buttes Reservoir
  206. Brown-headed Cowbird Molothrus ater
    # Count: 1
    Date:
    Observer: Scott Shaum
    Location: Two Buttes Reservoir
  207. Great-tailed Grackle Quiscalus mexicanus
    # Count: 1
    Date:
    Observer: Jesse Casias
    Location: Two Buttes Reservoir
  208. Worm-eating Warbler Helmitheros vermivorum
    # Count: 1
    Date:
    Observer: Colorado Bird Records Committee
    Location: Two Buttes Reservoir
  209. Orange-crowned Warbler Leiothlypis celata
    # Count: 1
    Date:
    Observer: Jesse Casias
    Location: Two Buttes Reservoir
  210. Virginia's Warbler Leiothlypis virginiae
    # Count: 1
    Date:
    Observer: Jim Malcom
    Location: Two Buttes Reservoir
  211. Common Yellowthroat Geothlypis trichas
    # Count: 1
    Date:
    Observer: Aaron Shipe
    Location: Two Buttes Reservoir
  212. Hooded Warbler Setophaga citrina
    # Count: 1
    Date:
    Observer: Jim Malcom
    Location: Two Buttes Reservoir
  213. Yellow Warbler Setophaga petechia
    # Count: 1
    Date:
    Observer: Brian Genge
    Location: Two Buttes Reservoir
  214. Blackpoll Warbler Setophaga striata
    # Count: 1
    Date:
    Observer: Jim Malcom
    Location: Two Buttes Reservoir
  215. Yellow-rumped Warbler Setophaga coronata
    # Count: 1
    Date:
    Observer: Scott Shaum
    Location: Two Buttes Reservoir
  216. Canada Warbler Cardellina canadensis
    # Count: 1
    Date:
    Observer: Colorado Bird Records Committee
    Location: Two Buttes Reservoir
  217. Wilson's Warbler Cardellina pusilla
    # Count: 1
    Date:
    Observer: Brian Genge
    Location: Two Buttes Reservoir
  218. Summer Tanager Piranga rubra
    # Count: 1
    Date:
    Observer: Jesse Casias
    Location: Two Buttes Reservoir
  219. Scarlet Tanager Piranga olivacea
    # Count: 1
    Date:
    Observer: Colorado Bird Records Committee
    Location: Two Buttes Reservoir
  220. Western Tanager Piranga ludoviciana
    # Count: 1
    Date:
    Observer: Kara Carragher
    Location: Two Buttes Reservoir
  221. Northern Cardinal Cardinalis cardinalis
    # Count: 1
    Date:
    Observer: Doris Ratchford
    Location: Two Buttes Reservoir
  222. Indigo Bunting Passerina cyanea
    # Count: 1
    Date:
    Observer: Steven Mlodinow
    Location: Two Buttes Reservoir
  223. Ross's Goose Anser rossii
    # Count: X
    Date:
    Observer: Mark Peterson
    Location: Two Buttes Reservoir
  224. Common Poorwill Phalaenoptilus nuttallii
    # Count: X
    Date:
    Observer: Ric Olson
    Location: Two Buttes Reservoir
  225. Chimney Swift Chaetura pelagica
    # Count: X
    Date:
    Observer: Ric Olson
    Location: Two Buttes Reservoir
  226. Black-chinned Hummingbird Archilochus alexandri
    # Count: X
    Date:
    Observer: Ric Olson
    Location: Two Buttes Reservoir
  227. Virginia Rail Rallus limicola
    # Count: X
    Date:
    Observer: Cindy Alberico
    Location: Two Buttes Reservoir
  228. Green Heron Butorides virescens
    # Count: X
    Date:
    Observer: Ric Olson
    Location: Two Buttes Reservoir
  229. Mississippi Kite Ictinia mississippiensis
    # Count: X
    Date:
    Observer: Ric Olson
    Location: Two Buttes Reservoir
  230. Rough-legged Hawk Buteo lagopus
    # Count: X
    Date:
    Observer: Lilian Saul
    Location: Two Buttes Reservoir
  231. Barn Owl Tyto alba
    # Count: X
    Date:
    Observer: Ric Olson
    Location: Two Buttes Reservoir
  232. White-eyed Vireo Vireo griseus
    # Count: X
    Date:
    Observer: Ric Olson
    Location: Two Buttes Reservoir
  233. Blue-headed Vireo Vireo solitarius
    # Count: X
    Date:
    Observer: Ric Olson
    Location: Two Buttes Reservoir
  234. Plumbeous Vireo Vireo plumbeus
    # Count: X
    Date:
    Observer: Ric Olson
    Location: Two Buttes Reservoir
  235. Philadelphia Vireo Vireo philadelphicus
    # Count: X
    Date:
    Observer: Ric Olson
    Location: Two Buttes Reservoir
  236. Warbling Vireo Vireo gilvus
    # Count: X
    Date:
    Observer: Ric Olson
    Location: Two Buttes Reservoir
  237. Black-capped Chickadee Poecile atricapillus
    # Count: X
    Date:
    Observer: Randall Siebert
    Location: Two Buttes Reservoir
  238. Bushtit Psaltriparus minimus
    # Count: X
    Date:
    Observer: Ric Olson
    Location: Two Buttes Reservoir
  239. Golden-crowned Kinglet Regulus satrapa
    # Count: X
    Date:
    Observer: James Beatty
    Location: Two Buttes Reservoir
  240. White-breasted Nuthatch Sitta carolinensis
    # Count: X
    Date:
    Observer: James Beatty
    Location: Two Buttes Reservoir
  241. Veery Catharus fuscescens
    # Count: X
    Date:
    Observer: James Beatty
    Location: Two Buttes Reservoir
  242. Wood Thrush Hylocichla mustelina
    # Count: X
    Date:
    Observer: Ric Olson
    Location: Two Buttes Reservoir
  243. Cedar Waxwing Bombycilla cedrorum
    # Count: X
    Date:
    Observer: Ric Olson
    Location: Two Buttes Reservoir
  244. Lesser Goldfinch Spinus psaltria
    # Count: X
    Date:
    Observer: Randall Siebert
    Location: Two Buttes Reservoir
  245. Canyon Towhee Melozone fusca
    # Count: X
    Date:
    Observer: Ric Olson
    Location: Two Buttes Reservoir
  246. Ovenbird Seiurus aurocapilla
    # Count: X
    Date:
    Observer: Ric Olson
    Location: Two Buttes Reservoir
  247. Northern Waterthrush Parkesia noveboracensis
    # Count: X
    Date:
    Observer: Ric Olson
    Location: Two Buttes Reservoir
  248. Black-and-white Warbler Mniotilta varia
    # Count: X
    Date:
    Observer: Ric Olson
    Location: Two Buttes Reservoir
  249. Tennessee Warbler Leiothlypis peregrina
    # Count: X
    Date:
    Observer: Ric Olson
    Location: Two Buttes Reservoir
  250. Nashville Warbler Leiothlypis ruficapilla
    # Count: X
    Date:
    Observer: Ric Olson
    Location: Two Buttes Reservoir
  251. MacGillivray's Warbler Geothlypis tolmiei
    # Count: X
    Date:
    Observer: Ric Olson
    Location: Two Buttes Reservoir
  252. American Redstart Setophaga ruticilla
    # Count: X
    Date:
    Observer: Ric Olson
    Location: Two Buttes Reservoir
  253. Cape May Warbler Setophaga tigrina
    # Count: X
    Date:
    Observer: Ric Olson
    Location: Two Buttes Reservoir
  254. Northern Parula Setophaga americana
    # Count: X
    Date:
    Observer: Ric Olson
    Location: Two Buttes Reservoir
  255. Blackburnian Warbler Setophaga fusca
    # Count: X
    Date:
    Observer: Ric Olson
    Location: Two Buttes Reservoir
  256. Chestnut-sided Warbler Setophaga pensylvanica
    # Count: X
    Date:
    Observer: James Beatty
    Location: Two Buttes Reservoir
  257. Black-throated Blue Warbler Setophaga caerulescens
    # Count: X
    Date:
    Observer: Ric Olson
    Location: Two Buttes Reservoir
  258. Palm Warbler Setophaga palmarum
    # Count: X
    Date:
    Observer: Ric Olson
    Location: Two Buttes Reservoir
  259. Townsend's Warbler Setophaga townsendi
    # Count: X
    Date:
    Observer: James Beatty
    Location: Two Buttes Reservoir
  260. Dickcissel Spiza americana
    # Count: X
    Date:
    Observer: Ric Olson
    Location: Two Buttes Reservoir

Exotic: Provisional (1)

  1. Ring-necked Pheasant Phasianus colchicus
    # Count: 1
    Date:
    Observer: Will Piper
    Location: Two Buttes Reservoir

Additional Taxa (18)

  1. dabbling duck sp. Anatidae sp. (dabbling duck sp.)
    # Count: 40
    Date:
    Observer: David Suddjian
    Location: Two Buttes Reservoir
  2. shorebird sp. Charadriiformes sp.
    # Count: 10
    Date:
    Observer: Diane Roberts
    Location: Two Buttes Reservoir
  3. swallow sp. Hirundinidae sp.
    # Count: 10
    Date:
    Observer: Nathan Pieplow
    Location: Two Buttes Reservoir
  4. Spizella sp. Spizella sp.
    # Count: 10
    Date:
    Observer: David Suddjian
    Location: Two Buttes Reservoir
  5. teal sp. Anatidae sp. (teal sp.)
    # Count: 8
    Date:
    Observer: Tony Leukering
    Location: Two Buttes Reservoir
  6. tern sp. Sterninae sp.
    # Count: 8
    Date:
    Observer: Kathy Mihm Dunning
    Location: Two Buttes Reservoir
  7. new world sparrow sp. Passerellidae sp.
    # Count: 6
    Date:
    Observer: David Suddjian
    Location: Two Buttes Reservoir
  8. Blue-winged/Cinnamon Teal Spatula discors/cyanoptera
    # Count: 5
    Date:
    Observer: Glenn Walbek
    Location: Two Buttes Reservoir
  9. Glossy/White-faced Ibis Plegadis falcinellus/chihi
    # Count: 3
    Date:
    Observer: Tony Leukering
    Location: Two Buttes Reservoir
  10. raven sp. Corvus sp. (raven sp.)
    # Count: 2
    Date:
    Observer: David Suddjian
    Location: Two Buttes Reservoir
  11. Greater/Lesser Scaup Aythya marila/affinis
    # Count: 1
    Date:
    Observer: Mark Peterson
    Location: Two Buttes Reservoir
  12. duck sp. Anatidae (duck sp.)
    # Count: 1
    Date:
    Observer: Marie Hoerner
    Location: Two Buttes Reservoir
  13. Western/Clark's Grebe Aechmophorus occidentalis/clarkii
    # Count: 1
    Date:
    Observer: Van Truan
    Location: Two Buttes Reservoir
  14. Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceus
    # Count: 1
    Date:
    Observer: Mark Peterson
    Location: Two Buttes Reservoir
  15. peep sp. Calidris sp. (peep sp.)
    # Count: 1
    Date:
    Observer: Kathy Mihm Dunning
    Location: Two Buttes Reservoir
  16. towhee sp. Melozone/Pipilo sp.
    # Count: 1
    Date:
    Observer: Diane Roberts
    Location: Two Buttes Reservoir
  17. passerine sp. Passeriformes sp.
    # Count: 1
    Date:
    Observer: Chelsea Weithman
    Location: Two Buttes Reservoir
  18. Lesser/Greater Yellowlegs Tringa flavipes/melanoleuca
    # Count: X
    Date:
    Observer: Laurens Halsey
    Location: Two Buttes Reservoir