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Bird List

Updated ~10 seconds ago
261 All Years 103 This Year 2024 20 This Month Sep 2024
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  1. Species Name
    Count
    Date
    Observer
    Location

Native and Naturalized (260)

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

  1. Blue-winged/Cinnamon Teal Spatula discors/cyanoptera
    # Count: 5
    Date:
    Observer: Glenn Walbek
    Location: Two Buttes Reservoir
  2. teal sp. Anatidae sp. (teal sp.)
    # Count: 30
    Date:
    Observer: Amy Darling
    Location: Two Buttes Reservoir
  3. dabbling duck sp. Anatidae sp. (dabbling duck sp.)
    # Count: 40
    Date:
    Observer: David Suddjian
    Location: Two Buttes Reservoir
  4. Greater/Lesser Scaup Aythya marila/affinis
    # Count: 1
    Date:
    Observer: Mark Peterson
    Location: Two Buttes Reservoir
  5. duck sp. Anatidae (duck sp.)
    # Count: 1
    Date:
    Observer: Marie Hoerner
    Location: Two Buttes Reservoir
  6. Western/Clark's Grebe Aechmophorus occidentalis/clarkii
    # Count: 1
    Date:
    Observer: Van Truan
    Location: Two Buttes Reservoir
  7. Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceus
    # Count: 1
    Date:
    Observer: Mark Peterson
    Location: Two Buttes Reservoir
  8. Lesser/Greater Yellowlegs Tringa flavipes/melanoleuca
    # Count: X
    Date:
    Observer: Laurens Halsey
    Location: Two Buttes Reservoir
  9. peep sp. Calidris sp. (peep sp.)
    # Count: 1
    Date:
    Observer: Kathy Mihm Dunning
    Location: Two Buttes Reservoir
  10. large shorebird sp. Scolopacidae sp. (large shorebird sp.)
    # Count: 2
    Date:
    Observer: Justyn Foth
    Location: Two Buttes Reservoir
  11. shorebird sp. Charadriiformes sp.
    # Count: 6
    Date:
    Observer: Justyn Foth
    Location: Two Buttes Reservoir
  12. tern sp. Sterninae sp.
    # Count: 8
    Date:
    Observer: Kathy Mihm Dunning
    Location: Two Buttes Reservoir
  13. Glossy/White-faced Ibis Plegadis falcinellus/chihi
    # Count: 3
    Date:
    Observer: Tony Leukering
    Location: Two Buttes Reservoir
  14. raven sp. Corvus sp. (raven sp.)
    # Count: 1
    Date:
    Observer: Cole Sage
    Location: Two Buttes Reservoir
  15. swallow sp. Hirundinidae sp.
    # Count: 10
    Date:
    Observer: Nathan Pieplow
    Location: Two Buttes Reservoir
  16. Spizella sp. Spizella sp.
    # Count: 10
    Date:
    Observer: David Suddjian
    Location: Two Buttes Reservoir
  17. towhee sp. Melozone/Pipilo sp.
    # Count: 1
    Date:
    Observer: Diane Roberts
    Location: Two Buttes Reservoir
  18. new world sparrow sp. Passerellidae sp.
    # Count: 6
    Date:
    Observer: David Suddjian
    Location: Two Buttes Reservoir
  19. passerine sp. Passeriformes sp.
    # Count: 1
    Date:
    Observer: Chelsea Weithman
    Location: Two Buttes Reservoir