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Bird List

Updated ~23 hours ago
395 All Years 253 This Year 2024 127 This Month Jun 2024
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  1. Species Name
    Count
    Date
    Observer
    Location

Native and Naturalized (252)

  1. Snow Goose Anser caerulescens
    # Count: 1
    Date:
    Observer: Trudy Kyler
    Location: 22595 County Road 48, La Salle US-CO 40.33425, -104.62134
  2. Ross's Goose Anser rossii
    # Count: 2
    Date:
    Observer: A S
    Location: St. Vrain SP
  3. Greater White-fronted Goose Anser albifrons
    # Count: 1
    Date:
    Observer: Steven Mlodinow
    Location: St. Vrain SP
  4. Cackling Goose Branta hutchinsii
    # Count: X
    Date:
    Observer: Trudy Kyler
    Location: 22595 County Road 48, La Salle US-CO 40.33425, -104.62134
  5. Canada Goose Branta canadensis
    # Count: 500
    Date:
    Observer: Gary Brower
    Location: St. Vrain State Park, Firestone US-CO 40.16692, -104.9899
  6. Trumpeter Swan Cygnus buccinator
    # Count: 1
    Date:
    Observer: Winston Liu
    Location: Union Reservoir
  7. Wood Duck Aix sponsa
    # Count: 2
    Date:
    Observer: Jamie Simo
    Location: Peschel Open Space
  8. Blue-winged Teal Spatula discors
    # Count: 1
    Date:
    Observer: John Vanderpoel
    Location: Beebe Draw area
  9. Cinnamon Teal Spatula cyanoptera
    # Count: 2
    Date:
    Observer: Chuck Aid
    Location: Co Rd 41 & Co Rd 46
  10. Northern Shoveler Spatula clypeata
    # Count: 18
    Date:
    Observer: Cole Wild
    Location: Union Reservoir
  11. Gadwall Mareca strepera
    # Count: 6
    Date:
    Observer: Gary Brower
    Location: St. Vrain State Park, Firestone US-CO 40.16692, -104.9899
  12. American Wigeon Mareca americana
    # Count: 12
    Date:
    Observer: Becky Heath
    Location: South Platte River near E 168th Ave
  13. Mallard Anas platyrhynchos
    # Count: 14
    Date:
    Observer: Gary Brower
    Location: St. Vrain State Park, Firestone US-CO 40.16692, -104.9899
  14. Northern Pintail Anas acuta
    # Count: 5
    Date:
    Observer: carl starace
    Location: Sandstone Ranch
  15. Green-winged Teal Anas crecca
    # Count: 11
    Date:
    Observer: Cole Wild
    Location: Union Reservoir
  16. Canvasback Aythya valisineria
    # Count: 76
    Date:
    Observer: Greg Levandoski
    Location: St. Vrain SP
  17. Redhead Aythya americana
    # Count: 3
    Date:
    Observer: Travis Hess
    Location: St. Vrain SP
  18. Ring-necked Duck Aythya collaris
    # Count: 1
    Date:
    Observer: Kyle Carlsen
    Location: St. Vrain SP
  19. Greater Scaup Aythya marila
    # Count: 2
    Date:
    Observer: Steven Mlodinow
    Location: St. Vrain SP
  20. Lesser Scaup Aythya affinis
    # Count: 5
    Date:
    Observer: Steven Mlodinow
    Location: St. Vrain SP
  21. Long-tailed Duck Clangula hyemalis
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  22. Bufflehead Bucephala albeola
    # Count: 2
    Date:
    Observer: Winston Liu
    Location: Union Reservoir
  23. Common Goldeneye Bucephala clangula
    # Count: 50
    Date:
    Observer: Winston Liu
    Location: Union Reservoir
  24. Barrow's Goldeneye Bucephala islandica
    # Count: 2
    Date:
    Observer: Cole Wild
    Location: Union Reservoir
  25. Hooded Merganser Lophodytes cucullatus
    # Count: 2
    Date:
    Observer: carl starace
    Location: Sandstone Ranch
  26. Common Merganser Mergus merganser
    # Count: 200
    Date:
    Observer: Winston Liu
    Location: Union Reservoir
  27. Red-breasted Merganser Mergus serrator
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Union Reservoir
  28. Ruddy Duck Oxyura jamaicensis
    # Count: 1
    Date:
    Observer: John Vanderpoel
    Location: St. Vrain SP
  29. Wild Turkey Meleagris gallopavo
    # Count: 28
    Date:
    Observer: Patricia Cullen
    Location: Brower SWA
  30. Sharp-tailed Grouse Tympanuchus phasianellus
    # Count: 1
    Date:
    Observer: Max Miller
    Location: Weld County Road 136
  31. Pied-billed Grebe Podilymbus podiceps
    # Count: 2
    Date:
    Observer: Greg Levandoski
    Location: St. Vrain SP
  32. Horned Grebe Podiceps auritus
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  33. Eared Grebe Podiceps nigricollis
    # Count: 4
    Date:
    Observer: Chris Goulart
    Location: Firestone Gravel Pits (view from road)
  34. Western Grebe Aechmophorus occidentalis
    # Count: 1
    Date:
    Observer: Dave Ruane
    Location: Home area (CO)
  35. Clark's Grebe Aechmophorus clarkii
    # Count: 1
    Date:
    Observer: John Vanderpoel
    Location: Lower Latham Reservoir area
  36. Rock Pigeon Columba livia
    # Count: 5
    Date:
    Observer: Gary Brower
    Location: St. Vrain State Park, Firestone US-CO 40.16692, -104.9899
  37. Eurasian Collared-Dove Streptopelia decaocto
    # Count: 1
    Date:
    Observer: Trudy Kyler
    Location: 22595 County Road 48, La Salle US-CO 40.33425, -104.62134
  38. White-winged Dove Zenaida asiatica
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Angel Lake
  39. Mourning Dove Zenaida macroura
    # Count: 1
    Date:
    Observer: Winston Liu
    Location: Lower Latham Reservoir area
  40. Yellow-billed Cuckoo Coccyzus americanus
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Frank SWA (Weld Co)
  41. Common Nighthawk Chordeiles minor
    # Count: 1
    Date:
    Observer: Jessie Reese
    Location: Pawnee NG--Crow Valley CG
  42. Common Poorwill Phalaenoptilus nuttallii
    # Count: 1
    Date:
    Observer: Kaleigh Keohane
    Location: Pawnee NG Bird Tour--Stops 1-4 and Murphy's Pasture
  43. Chimney Swift Chaetura pelagica
    # Count: 2
    Date:
    Observer: Brad Steger
    Location: Island Grove Regional Park
  44. Black-chinned Hummingbird Archilochus alexandri
    # Count: 1
    Date:
    Observer: David Schutt
    Location: Pelican Hills
  45. Broad-tailed Hummingbird Selasphorus platycercus
    # Count: 1
    Date:
    Observer: Garrison Doctor
    Location: Coal Creek Trail--Erie
  46. Virginia Rail Rallus limicola
    # Count: 1
    Date:
    Observer: Evan Appel
    Location: St. Vrain SP
  47. Sora Porzana carolina
    # Count: 1
    Date:
    Observer: Kalder Korte
    Location: Lower Latham Reservoir area
  48. American Coot Fulica americana
    # Count: 20
    Date:
    Observer: A S
    Location: St. Vrain SP
  49. Sandhill Crane Antigone canadensis
    # Count: 1
    Date:
    Observer: Chuck Aid
    Location: Loloff Reservoir
  50. Black-necked Stilt Himantopus mexicanus
    # Count: 1
    Date:
    Observer: Renee Casias
    Location: Loloff Reservoir
  51. American Avocet Recurvirostra americana
    # Count: 2
    Date:
    Observer: Diane Roberts
    Location: Loloff Reservoir
  52. Black-bellied Plover Pluvialis squatarola
    # Count: 1
    Date:
    Observer: Todd Deininger
    Location: Union Reservoir
  53. Killdeer Charadrius vociferus
    # Count: 2
    Date:
    Observer: Cole Wild
    Location: Union Reservoir
  54. Semipalmated Plover Charadrius semipalmatus
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  55. Mountain Plover Anarhynchus montanus
    # Count: 2
    Date:
    Observer: Peter Burke
    Location: Briggsdale (town)
  56. Upland Sandpiper Bartramia longicauda
    # Count: 1
    Date:
    Observer: Simon Tolzmann
    Location: Weld CR 41 from CR 46 to 48 (private; view from road)
  57. Whimbrel Numenius phaeopus
    # Count: 1
    Date:
    Observer: Alex Smolyanskaya
    Location: Pawnee NG Bird Tour--Stops 1-4 and Murphy's Pasture
  58. Long-billed Curlew Numenius americanus
    # Count: 1
    Date:
    Observer: David Suddjian
    Location: Lower Latham Reservoir area
  59. Marbled Godwit Limosa fedoa
    # Count: 1
    Date:
    Observer: David Suddjian
    Location: Loloff Reservoir
  60. Short-billed Dowitcher Limnodromus griseus
    # Count: 2
    Date:
    Observer: Norman Erthal
    Location: Stewart's Pond
  61. Long-billed Dowitcher Limnodromus scolopaceus
    # Count: 1
    Date:
    Observer: Winston Liu
    Location: Lower Latham Reservoir area
  62. Wilson's Snipe Gallinago delicata
    # Count: 1
    Date:
    Observer: Marie Hoerner
    Location: Lower Latham Reservoir area
  63. Wilson's Phalarope Phalaropus tricolor
    # Count: 1
    Date:
    Observer: Amy Davis
    Location: Stewart's Pond
  64. Red-necked Phalarope Phalaropus lobatus
    # Count: 1
    Date:
    Observer: David Suddjian
    Location: Weld CRs 61 & 74 ponds
  65. Spotted Sandpiper Actitis macularius
    # Count: 1
    Date:
    Observer: Winston Liu
    Location: Loloff Reservoir
  66. Solitary Sandpiper Tringa solitaria
    # Count: 1
    Date:
    Observer: Jeremy Alcorn
    Location: Weld CR 59 wetlands
  67. Lesser Yellowlegs Tringa flavipes
    # Count: 12
    Date:
    Observer: Patricia Cullen
    Location: Weld CR 41 from CR 46 to 48 (private; view from road)
  68. Willet Tringa semipalmata
    # Count: 1
    Date:
    Observer: Patricia Cullen
    Location: Cozzens Lake (private property - view from road only!)
  69. Greater Yellowlegs Tringa melanoleuca
    # Count: 3
    Date:
    Observer: Cole Wild
    Location: Lower Latham Reservoir area
  70. Ruddy Turnstone Arenaria interpres
    # Count: 1
    Date:
    Observer: william fink
    Location: Loloff Reservoir
  71. Stilt Sandpiper Calidris himantopus
    # Count: 1
    Date:
    Observer: David Suddjian
    Location: Loloff Reservoir
  72. Sanderling Calidris alba
    # Count: 1
    Date:
    Observer: Sean Huntley
    Location: Loloff Reservoir
  73. Baird's Sandpiper Calidris bairdii
    # Count: 1
    Date:
    Observer: David Suddjian
    Location: Loloff Reservoir
  74. White-rumped Sandpiper Calidris fuscicollis
    # Count: 2
    Date:
    Observer: Raymond Sperger
    Location: Lower Latham Reservoir area
  75. Least Sandpiper Calidris minutilla
    # Count: 1
    Date:
    Observer: Dave Ruane
    Location: Home area (CO)
  76. Pectoral Sandpiper Calidris melanotos
    # Count: 2
    Date:
    Observer: Winston Liu
    Location: Loloff Reservoir
  77. Western Sandpiper Calidris mauri
    # Count: 1
    Date:
    Observer: Cassie Luke
    Location: Stewart's Pond
  78. Semipalmated Sandpiper Calidris pusilla
    # Count: 3
    Date:
    Observer: Chuck Aid
    Location: Loloff Reservoir
  79. Sabine's Gull Xema sabini
    # Count: 1
    Date:
    Observer: Chris Goulart
    Location: Ireland Reservoir No. 5
  80. Bonaparte's Gull Chroicocephalus philadelphia
    # Count: 1
    Date:
    Observer: Patrick Morgan
    Location: St. Vrain SP
  81. Franklin's Gull Leucophaeus pipixcan
    # Count: 1
    Date:
    Observer: Caleb Stewart
    Location: Poudre Learning Center
  82. Short-billed Gull Larus brachyrhynchus
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Windsor Lake
  83. Ring-billed Gull Larus delawarensis
    # Count: 3
    Date:
    Observer: Gary Brower
    Location: St. Vrain State Park, Firestone US-CO 40.16692, -104.9899
  84. Herring Gull Larus argentatus
    # Count: 1
    Date:
    Observer: Greg Levandoski
    Location: St. Vrain SP
  85. Glaucous Gull Larus hyperboreus
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Windsor Reservoir
  86. Lesser Black-backed Gull Larus fuscus
    # Count: 4
    Date:
    Observer: Cole Wild
    Location: Gress Reservoir
  87. California Gull Larus californicus
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Gress Reservoir
  88. Iceland Gull Larus glaucoides
    # Count: 1
    Date:
    Observer: David Fraide
    Location: Union Reservoir
  89. Caspian Tern Hydroprogne caspia
    # Count: 2
    Date:
    Observer: Cole Wild
    Location: Windsor Reservoir
  90. Black Tern Chlidonias niger
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Windsor Reservoir
  91. Forster's Tern Sterna forsteri
    # Count: 1
    Date:
    Observer: Doug Ward
    Location: Prospect Reservoir (Weld Co.)
  92. Common Loon Gavia immer
    # Count: 1
    Date:
    Observer: David Fraide
    Location: Union Reservoir
  93. Double-crested Cormorant Nannopterum auritum
    # Count: 1
    Date:
    Observer: Greg Levandoski
    Location: St. Vrain SP
  94. American White Pelican Pelecanus erythrorhynchos
    # Count: 10
    Date:
    Observer: S Brady
    Location: Union Reservoir
  95. American Bittern Botaurus lentiginosus
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Rockwell Reservoir
  96. Black-crowned Night Heron Nycticorax nycticorax
    # Count: 1
    Date:
    Observer: Dave Ruane
    Location: Home area (CO)
  97. Snowy Egret Egretta thula
    # Count: 3
    Date:
    Observer: Bill Schreitz
    Location: Pawnee NG--Adams and Bunker Reservoir Number 1
  98. Green Heron Butorides virescens
    # Count: 1
    Date:
    Observer: Jamie Simo
    Location: St. Vrain SP
  99. Western Cattle Egret Bubulcus ibis
    # Count: 2
    Date:
    Observer: Chris Goulart
    Location: Glenmere park
  100. Great Egret Ardea alba
    # Count: 1
    Date:
    Observer: David Suddjian
    Location: Weld CRs 61 & 74 ponds
  101. Great Blue Heron Ardea herodias
    # Count: 1
    Date:
    Observer: Gary Brower
    Location: St. Vrain State Park, Firestone US-CO 40.16692, -104.9899
  102. White-faced Ibis Plegadis chihi
    # Count: 18
    Date:
    Observer: Jay Hutchins
    Location: Union Reservoir
  103. Turkey Vulture Cathartes aura
    # Count: 1
    Date:
    Observer: Todd Jensen
    Location: 66772–67998 US-85, Carr US-CO 40.98130, -104.78190
  104. Osprey Pandion haliaetus
    # Count: 1
    Date:
    Observer: Dave Ruane
    Location: Home area (CO)
  105. Golden Eagle Aquila chrysaetos
    # Count: 1
    Date:
    Observer: Michael Stone
    Location: I25 Johnstown S
  106. Northern Harrier Circus hudsonius
    # Count: 1
    Date:
    Observer: Winston Liu
    Location: Lower Latham Reservoir area
  107. Sharp-shinned Hawk Accipiter striatus
    # Count: 1
    Date:
    Observer: Dave Meisinger
    Location: Larch Drive
  108. Cooper's Hawk Accipiter cooperii
    # Count: 1
    Date:
    Observer: Trudy Kyler
    Location: 22595 County Road 48, La Salle US-CO 40.33425, -104.62134
  109. Bald Eagle Haliaeetus leucocephalus
    # Count: 8
    Date:
    Observer: Trudy Kyler
    Location: 22595 County Road 48, La Salle US-CO 40.33425, -104.62134
  110. Broad-winged Hawk Buteo platypterus
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Frank SWA (Weld Co)
  111. Swainson's Hawk Buteo swainsoni
    # Count: 2
    Date:
    Observer: Marek Krolikowski
    Location: I-25 N, Berthoud US-CO 40.32005, -104.98005
  112. Red-tailed Hawk Buteo jamaicensis
    # Count: 1
    Date:
    Observer: Trudy Kyler
    Location: 22595 County Road 48, La Salle US-CO 40.33425, -104.62134
  113. Rough-legged Hawk Buteo lagopus
    # Count: 1
    Date:
    Observer: Patricia Cullen
    Location: LEAF flying field County Road 26, Longmont US-CO
  114. Ferruginous Hawk Buteo regalis
    # Count: 1
    Date:
    Observer: Winston Liu
    Location: Union Reservoir
  115. Barn Owl Tyto alba
    # Count: 1
    Date:
    Observer: Winston Liu
    Location: Coal Creek Trail--Vista Pkwy to Erie Pkwy
  116. Eastern Screech-Owl Megascops asio
    # Count: 1
    Date:
    Observer: Dave Ruane
    Location: Home area (CO)
  117. Great Horned Owl Bubo virginianus
    # Count: 1
    Date:
    Observer: Kyle Carlsen
    Location: Lower Latham Reservoir area
  118. Burrowing Owl Athene cunicularia
    # Count: 1
    Date:
    Observer: Dave Ruane
    Location: Home area (CO)
  119. Long-eared Owl Asio otus
    # Count: 1
  120. Short-eared Owl Asio flammeus
    # Count: 2
    Date:
    Observer: Winston Liu
    Location: Lower Latham Reservoir area
  121. Belted Kingfisher Megaceryle alcyon
    # Count: 1
    Date:
    Observer: Gary Brower
    Location: St. Vrain State Park, Firestone US-CO 40.16692, -104.9899
  122. Red-headed Woodpecker Melanerpes erythrocephalus
    # Count: 1
    Date:
    Observer: Todd Deininger
    Location: Pawnee NG--Crow Valley CG
  123. Downy Woodpecker Dryobates pubescens
    # Count: 2
    Date:
    Observer: Dave Meisinger
    Location: Larch Drive
  124. Hairy Woodpecker Dryobates villosus
    # Count: 1
    Date:
    Observer: Patricia Brown
    Location: My Yard (Main)
  125. Northern Flicker Colaptes auratus
    # Count: 1
    Date:
    Observer: Dave Meisinger
    Location: Larch Drive
  126. American Kestrel Falco sparverius
    # Count: 1
    Date:
    Observer: Winston Liu
    Location: 22777–22979 County Road 42, La Salle US-CO 40.29053, -104.62583
  127. Merlin Falco columbarius
    # Count: 1
    Date:
    Observer: Trudy Kyler
    Location: 22595 County Road 48, La Salle US-CO 40.33425, -104.62134
  128. Gyrfalcon Falco rusticolus
    # Count: 1
  129. Peregrine Falcon Falco peregrinus
    # Count: 1
    Date:
    Observer: Dave Ruane
    Location: Home area (CO)
  130. Prairie Falcon Falco mexicanus
    # Count: 1
    Date:
    Observer: Bob Spencer
    Location: St. Vrain SP
  131. Olive-sided Flycatcher Contopus cooperi
    # Count: 1
    Date:
    Observer: Robert Tonge
    Location: 52 & S Platte
  132. Western Wood-Pewee Contopus sordidulus
    # Count: 1
    Date:
    Observer: Brenda Wo
    Location: booth farms
  133. Willow Flycatcher Empidonax traillii
    # Count: 1
    Date:
    Observer: David Fraide
    Location: Pawnee NG--Crow Valley CG
  134. Least Flycatcher Empidonax minimus
    # Count: 1
    Date:
    Observer: Adrian Lakin
    Location: Pawnee NG--Crow Valley CG
  135. Hammond's Flycatcher Empidonax hammondii
    # Count: 1
    Date:
    Observer: Andrew Rothman
    Location: 44543–44999 County Road 77, Briggsdale US-CO 40.66471, -104.33473
  136. Gray Flycatcher Empidonax wrightii
    # Count: 2
    Date:
    Observer: Edward Raynor
    Location: Pawnee NG--Central Plains Experimental Range
  137. Dusky Flycatcher Empidonax oberholseri
    # Count: 1
    Date:
    Observer: Zachary Young
    Location: Pawnee NG--Crow Valley CG
  138. Western Flycatcher Empidonax difficilis
    # Count: 1
    Date:
    Observer: mary beer
    Location: Pawnee NG Bird Tour—Stops 5-8
  139. Say's Phoebe Sayornis saya
    # Count: 2
    Date:
    Observer: Cole Wild
    Location: Union Reservoir
  140. Ash-throated Flycatcher Myiarchus cinerascens
    # Count: 1
    Date:
    Observer: Grant Medlin
    Location: Pawnee NG--Crow Valley CG
  141. Cassin's Kingbird Tyrannus vociferans
    # Count: 1
    Date:
    Observer: Scott Rashid
    Location: 8129 County Road 21, Fort Lupton US-CO 40.12281, -104.86747
  142. Western Kingbird Tyrannus verticalis
    # Count: 1
    Date:
    Observer: Jim Stoneberg
    Location: Poudre River Trail
  143. Eastern Kingbird Tyrannus tyrannus
    # Count: 1
    Date:
    Observer: bill gerhart
    Location: 33313 County Road 16, Keenesburg, Colorado, US (40.103, -104.427)
  144. Plumbeous Vireo Vireo plumbeus
    # Count: 1
    Date:
    Observer: Alex Smolyanskaya
    Location: St. Vrain SP
  145. Warbling Vireo Vireo gilvus
    # Count: 1
    Date:
    Observer: Alex Smolyanskaya
    Location: St. Vrain SP
  146. Red-eyed Vireo Vireo olivaceus
    # Count: 1
    Date:
    Observer: Vicky Miles
    Location: Pawnee NG--Crow Valley CG
  147. Loggerhead Shrike Lanius ludovicianus
    # Count: 1
    Date:
    Observer: Dave Ruane
    Location: Home area (CO)
  148. Northern Shrike Lanius borealis
    # Count: 1
    Date:
    Observer: Greg Levandoski
    Location: St. Vrain SP
  149. Blue Jay Cyanocitta cristata
    # Count: 6
    Date:
    Observer: Winston Liu
    Location: Union Reservoir
  150. Woodhouse's Scrub-Jay Aphelocoma woodhouseii
    # Count: 1
    Date:
    Observer: Adrian Lakin
    Location: Home - Mead
  151. Black-billed Magpie Pica hudsonia
    # Count: 1
    Date:
    Observer: Winston Liu
    Location: Union Reservoir
  152. American Crow Corvus brachyrhynchos
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  153. Common Raven Corvus corax
    # Count: 1
    Date:
    Observer: Andrew Monson
    Location: SH-14, New Raymer US-CO
  154. Black-capped Chickadee Poecile atricapillus
    # Count: 1
    Date:
    Observer: August Myers
    Location: Poudre River Trail, Windsor US-CO 40.46150, -104.91721
  155. Horned Lark Eremophila alpestris
    # Count: 2
    Date:
    Observer: Earl Johnson
    Location: 6175 Easton Circle, Longmont, Colorado, US (40.089, -104.952)
  156. Bank Swallow Riparia riparia
    # Count: 5
    Date:
    Observer: Patricia Cullen
    Location: Banner Lakes SWA (closed April 1 - July 15)
  157. Tree Swallow Tachycineta bicolor
    # Count: X
    Date:
    Observer: David Fraide
    Location: St. Vrain SP
  158. Violet-green Swallow Tachycineta thalassina
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Windsor Reservoir
  159. Northern Rough-winged Swallow Stelgidopteryx serripennis
    # Count: 4
    Date:
    Observer: Cole Wild
    Location: Windsor Lake
  160. Barn Swallow Hirundo rustica
    # Count: 2
    Date:
    Observer: Candice Johnson
    Location: Weld CR 41 from CR 46 to 48 (private; view from road)
  161. Cliff Swallow Petrochelidon pyrrhonota
    # Count: 2
    Date:
    Observer: carl starace
    Location: Sandstone Ranch
  162. Bushtit Psaltriparus minimus
    # Count: 2
    Date:
    Observer: David Schutt
    Location: Pelican Hills
  163. Ruby-crowned Kinglet Corthylio calendula
    # Count: 1
    Date:
    Observer: John Vanderpoel
    Location: Union Reservoir
  164. White-breasted Nuthatch Sitta carolinensis
    # Count: 1
    Date:
    Observer: Patrick Morgan
    Location: St. Vrain SP
  165. Red-breasted Nuthatch Sitta canadensis
    # Count: 1
    Date:
    Observer: Dave Meisinger
    Location: Larch Drive
  166. Brown Creeper Certhia americana
    # Count: 1
    Date:
    Observer: Winston Liu
    Location: Nakagawa SWA
  167. Blue-gray Gnatcatcher Polioptila caerulea
    # Count: 1
    Date:
    Observer: Kai Webler
    Location: Sandstone Ranch
  168. Rock Wren Salpinctes obsoletus
    # Count: 1
    Date:
    Observer: Tom Slyker
    Location: Pawnee NG Bird Tour--Stops 1-4 and Murphy's Pasture
  169. House Wren Troglodytes aedon
    # Count: 1
    Date:
    Observer: Steve Barlow
    Location: St. Vrain SP
  170. Winter Wren Troglodytes hiemalis
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Frank SWA (Weld Co)
  171. Marsh Wren Cistothorus palustris
    # Count: 2
    Date:
    Observer: Joey Kellner
    Location: Lower Latham Reservoir area
  172. European Starling Sturnus vulgaris
    # Count: 31
    Date:
    Observer: Trudy Kyler
    Location: 22595 County Road 48, La Salle US-CO 40.33425, -104.62134
  173. Gray Catbird Dumetella carolinensis
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: St. Vrain SP
  174. Brown Thrasher Toxostoma rufum
    # Count: 2
    Date:
    Observer: Felice Lyons
    Location: Pawnee NG--Crow Valley CG
  175. Sage Thrasher Oreoscoptes montanus
    # Count: 1
    Date:
    Observer: Tom Slyker
    Location: Pawnee NG Bird Tour--Stops 1-4 and Murphy's Pasture
  176. Northern Mockingbird Mimus polyglottos
    # Count: 1
    Date:
    Observer: Sue Riffe
    Location: 61184 County Road 89, Grover US-CO 40.89435, -104.21990
  177. Eastern Bluebird Sialia sialis
    # Count: 1
    Date:
    Observer: Felice Lyons
    Location: Pawnee NG--Crow Valley CG
  178. Western Bluebird Sialia mexicana
    # Count: 1
    Date:
    Observer: Rachel Kolokoff Hopper
    Location: Pawnee National Grassland, Nunn US-CO (40.8267,-104.7167)
  179. Mountain Bluebird Sialia currucoides
    # Count: 3
    Date:
    Observer: Max Miller
    Location: County Road 132, Grover, Colorado, US (40.945, -104.012)
  180. Townsend's Solitaire Myadestes townsendi
    # Count: 1
    Date:
    Observer: Tyler Wilson
    Location: Banner Lakes SWA (closed April 1 - July 15)
  181. Veery Catharus fuscescens
    # Count: X
    Date:
    Observer: Vicky Miles
    Location: Pawnee NG--Crow Valley CG
  182. Gray-cheeked Thrush Catharus minimus
    # Count: 1
    Date:
    Observer: William Vanderpoel
    Location: Pawnee NG--Crow Valley CG
  183. Swainson's Thrush Catharus ustulatus
    # Count: 8
    Date:
    Observer: Zachary Young
    Location: Pawnee NG--Crow Valley CG
  184. Hermit Thrush Catharus guttatus
    # Count: 1
    Date:
    Observer: Rachel Kolokoff Hopper
    Location: Crow Valley Recreation Area, Briggsdale US-CO 40.64399, -104.34118
  185. American Robin Turdus migratorius
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  186. Cedar Waxwing Bombycilla cedrorum
    # Count: 17
    Date:
    Observer: Lander Bowser
    Location: Lower Latham Reservoir area
  187. House Sparrow Passer domesticus
    # Count: 6
    Date:
    Observer: Trudy Kyler
    Location: 22595 County Road 48, La Salle US-CO 40.33425, -104.62134
  188. American Pipit Anthus rubescens
    # Count: 1
    Date:
    Observer: Joey Kellner
    Location: Lower Latham Reservoir area
  189. House Finch Haemorhous mexicanus
    # Count: 2
    Date:
    Observer: Cole Wild
    Location: Union Reservoir
  190. Cassin's Finch Haemorhous cassinii
    # Count: 1
    Date:
    Observer: Adrian Lakin
    Location: Pawnee NG--Crow Valley CG
  191. Common Redpoll Acanthis flammea
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Ide and Starbird Reservoir Number 1
  192. Pine Siskin Spinus pinus
    # Count: 1
    Date:
    Observer: Dave Ruane
    Location: Home area (CO)
  193. Lesser Goldfinch Spinus psaltria
    # Count: 1
    Date:
    Observer: Jeff Percell
    Location: Northridge Loop
  194. American Goldfinch Spinus tristis
    # Count: 2
    Date:
    Observer: Trudy Kyler
    Location: Weld County CR 46 wet area
  195. Lapland Longspur Calcarius lapponicus
    # Count: 10
    Date:
    Observer: Paul Braford
    Location: Buttes Trail, Grover US-CO 40.80819, -103.98925
  196. Chestnut-collared Longspur Calcarius ornatus
    # Count: 3
    Date:
    Observer: Peter Burke
    Location: 53000–53454 County Road 57, Ault US-CO (40.7715,-104.5241)
  197. Thick-billed Longspur Rhynchophanes mccownii
    # Count: 1
    Date:
    Observer: Peter Burke
    Location: Pawnee NG Bird Tour—Stops 5-8
  198. Snow Bunting Plectrophenax nivalis
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Weld CR 128
  199. Cassin's Sparrow Peucaea cassinii
    # Count: 1
    Date:
    Observer: Chris Goulart
    Location: Pawnee NG Bird Tour—Stops 9-11 (CR-104)
  200. Grasshopper Sparrow Ammodramus savannarum
    # Count: 1
    Date:
    Observer: Shuming Chen
    Location: Pawnee NG Bird Tour—Stops 5-8
  201. Chipping Sparrow Spizella passerina
    # Count: 1
    Date:
    Observer: Edward Raynor
    Location: Pawnee NG--Central Plains Experimental Range
  202. Clay-colored Sparrow Spizella pallida
    # Count: 1
    Date:
    Observer: David Fraide
    Location: Union Reservoir
  203. Field Sparrow Spizella pusilla
    # Count: 1
    Date:
    Observer: Joe Kipper
    Location: 55359 County Road 134, Grover, Colorado, US (40.96, -103.983)
  204. Brewer's Sparrow Spizella breweri
    # Count: 1
    Date:
    Observer: Phil Bartley
    Location: Pawnee NG Bird Tour—Stops 5-8
  205. Lark Sparrow Chondestes grammacus
    # Count: 1
    Date:
    Observer: carl starace
    Location: Sandstone Ranch
  206. Lark Bunting Calamospiza melanocorys
    # Count: 1
    Date:
    Observer: Michaela McNabb
    Location: Pawnee NG--Weld CR 45 from CR 114 to 122
  207. American Tree Sparrow Spizelloides arborea
    # Count: 2
    Date:
    Observer: Winston Liu
    Location: Lower Latham Reservoir area
  208. Dark-eyed Junco Junco hyemalis
    # Count: 1
    Date:
    Observer: Dave Meisinger
    Location: Larch Drive
  209. White-crowned Sparrow Zonotrichia leucophrys
    # Count: 42
    Date:
    Observer: Trudy Kyler
    Location: Weld County CR 46 wet area
  210. Harris's Sparrow Zonotrichia querula
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  211. White-throated Sparrow Zonotrichia albicollis
    # Count: 1
    Date:
    Observer: Chris Petrizzo
    Location: Banner Lakes SWA (closed April 1 - July 15)
  212. Vesper Sparrow Pooecetes gramineus
    # Count: 1
    Date:
    Observer: Kori Sedmak
    Location: Pawnee NG Bird Tour—Stops 9-11 (CR-104)
  213. Savannah Sparrow Passerculus sandwichensis
    # Count: 1
    Date:
    Observer: Sue Riffe
    Location: Pawnee NG Bird Tour—Stops 5-8
  214. Song Sparrow Melospiza melodia
    # Count: 1
    Date:
    Observer: Winston Liu
    Location: Lower Latham Reservoir area
  215. Lincoln's Sparrow Melospiza lincolnii
    # Count: 1
    Date:
    Observer: Tracy Pheneger 🪺
    Location: Sandstone Ranch
  216. Swamp Sparrow Melospiza georgiana
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Rockwell Reservoir
  217. Green-tailed Towhee Pipilo chlorurus
    # Count: 1
    Date:
    Observer: Dave Meisinger
    Location: Larch Drive
  218. Spotted Towhee Pipilo maculatus
    # Count: 1
    Date:
    Observer: Adrian Lakin
    Location: Home - Mead
  219. Yellow-breasted Chat Icteria virens
    # Count: 1
    Date:
    Observer: Garrison Doctor
    Location: Coal Creek Trail--Erie
  220. Yellow-headed Blackbird Xanthocephalus xanthocephalus
    # Count: 3
    Date:
    Observer: Sam Zhang
    Location: Lower Latham Reservoir area
  221. Western Meadowlark Sturnella neglecta
    # Count: 12
    Date:
    Observer: Trudy Kyler
    Location: 22595 County Road 48, La Salle US-CO 40.33425, -104.62134
  222. Orchard Oriole Icterus spurius
    # Count: 1
    Date:
    Observer: Whitney Grover
    Location: St. Vrain SP
  223. Bullock's Oriole Icterus bullockii
    # Count: 1
    Date:
    Observer: Willa Weimer
    Location: Poudre Learning Center
  224. Red-winged Blackbird Agelaius phoeniceus
    # Count: 143
    Date:
    Observer: Trudy Kyler
    Location: 22595 County Road 48, La Salle US-CO 40.33425, -104.62134
  225. Brown-headed Cowbird Molothrus ater
    # Count: 1
    Date:
    Observer: Felice Lyons
    Location: Beebe Draw area
  226. Rusty Blackbird Euphagus carolinus
    # Count: 1
    Date:
    Observer: Bob Spencer
    Location: St. Vrain SP
  227. Brewer's Blackbird Euphagus cyanocephalus
    # Count: 13
    Date:
    Observer: Cole Wild
    Location: Union Reservoir
  228. Common Grackle Quiscalus quiscula
    # Count: 1
    Date:
    Observer: Chris Petrizzo
    Location: Banner Lakes SWA (closed April 1 - July 15)
  229. Great-tailed Grackle Quiscalus mexicanus
    # Count: 6
    Date:
    Observer: Winston Liu
    Location: 22777–22979 County Road 42, La Salle US-CO 40.29053, -104.62583
  230. Ovenbird Seiurus aurocapilla
    # Count: 1
    Date:
    Observer: robert beauchamp
    Location: Pawnee NG--Norma's Grove
  231. Northern Waterthrush Parkesia noveboracensis
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Clark Lake
  232. Black-and-white Warbler Mniotilta varia
    # Count: 1
    Date:
    Observer: Toni Bowen
    Location: Pawnee NG--Crow Valley CG
  233. Tennessee Warbler Leiothlypis peregrina
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  234. Orange-crowned Warbler Leiothlypis celata
    # Count: 1
    Date:
    Observer: Catherine Hamilton
    Location: Bittersweet Park
  235. Nashville Warbler Leiothlypis ruficapilla
    # Count: 1
    Date:
    Observer: John Vanderpoel
    Location: Pawnee NG--Norma's Grove
  236. MacGillivray's Warbler Geothlypis tolmiei
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Clark Lake
  237. Common Yellowthroat Geothlypis trichas
    # Count: 1
    Date:
    Observer: John Vanderpoel
    Location: Union Reservoir
  238. American Redstart Setophaga ruticilla
    # Count: 1
    Date:
    Observer: Luke Buckardt
    Location: Coal Creek Trail--Vista Pkwy to Erie Pkwy
  239. Northern Parula Setophaga americana
    # Count: 1
    Date:
    Observer: Christine Alexander
    Location: Pawnee NG--Crow Valley CG
  240. Magnolia Warbler Setophaga magnolia
    # Count: 1
    Date:
    Observer: Brian Genge
    Location: Pawnee NG--Crow Valley CG
  241. Yellow Warbler Setophaga petechia
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  242. Chestnut-sided Warbler Setophaga pensylvanica
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Frank SWA (Weld Co)
  243. Yellow-rumped Warbler Setophaga coronata
    # Count: 1
    Date:
    Observer: Patricia Brown
    Location: My Yard (Main)
  244. Townsend's Warbler Setophaga townsendi
    # Count: 1
    Date:
    Observer: robert beauchamp
    Location: Pawnee NG--Crow Valley CG
  245. Wilson's Warbler Cardellina pusilla
    # Count: 1
    Date:
    Observer: Edward Raynor
    Location: Pawnee NG--Central Plains Experimental Range
  246. Western Tanager Piranga ludoviciana
    # Count: 1
    Date:
    Observer: Dave Meisinger
    Location: Larch Drive
  247. Rose-breasted Grosbeak Pheucticus ludovicianus
    # Count: 1
    Date:
    Observer: Dave Meisinger
    Location: Larch Drive
  248. Black-headed Grosbeak Pheucticus melanocephalus
    # Count: 1
    Date:
    Observer: Opal Wood
    Location: Kodak Watchable Wildlife Area
  249. Blue Grosbeak Passerina caerulea
    # Count: 1
    Date:
    Observer: Jay Hutchins
    Location: Nakagawa SWA
  250. Lazuli Bunting Passerina amoena
    # Count: 1
    Date:
    Observer: Adrian Lakin
    Location: Pawnee NG--Crow Valley CG
  251. Indigo Bunting Passerina cyanea
    # Count: 1
    Date:
    Observer: carl starace
    Location: Sandstone Ranch
  252. Dickcissel Spiza americana
    # Count: 1
    Date:
    Observer: Matthew Hixson
    Location: 64443–64999 SH-14, New Raymer US-CO 40.60956, -103.83111

Exotic: Provisional (1)

  1. Ring-necked Pheasant Phasianus colchicus
    # Count: 2
    Date:
    Observer: Cole Wild
    Location: Ide and Starbird Reservoir Number 1

Exotic: Escapee (4)

  1. Mute Swan Cygnus olor
    # Count: 1
    Date:
    Observer: Andrea Russell
    Location: Linn Grove Cemetery
  2. Northern Bobwhite Colinus virginianus
    # Count: 1
    Date:
    Observer: Bruce Snyder
    Location: WCR 49 north of WCR 4
  3. Indian Peafowl Pavo cristatus
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Cozzens Lake (private property - view from road only!)
  4. Chukar Alectoris chukar
    # Count: 4
    Date:
    Observer: Norm Lewis
    Location: Masters and South Platte

Hybrids (10)

  1. Snow x Greater White-fronted Goose (hybrid) Anser caerulescens x albifrons
    # Count: 1
    Date:
    Observer: Chuck Aid
    Location: Stewart's Pond
  2. Snow x Cackling Goose (hybrid) Anser caerulescens x Branta hutchinsii
    # Count: 2
    Date:
    Observer: Steven Mlodinow
    Location: St. Vrain SP
  3. Ross's x Cackling Goose (hybrid) Anser rossii x Branta hutchinsii
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Franklin Lake
  4. Greater White-fronted x Cackling Goose (hybrid) Anser albifrons x Branta hutchinsii
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Windsor Reservoir
  5. Snow x Canada Goose (hybrid) Anser caerulescens x Branta canadensis
    # Count: 2
    Date:
    Observer: Rob Protzman
    Location: 1457 Waterwood Dr, Windsor US-CO (40.4729,-104.9254)
  6. Snow/Ross's x Cackling/Canada Goose (hybrid) Anser caerulescens/rossii x Branta hutchinsii/canadensis
    # Count: 1
    Date:
    Observer: Felice Lyons
    Location: St. Vrain SP
  7. Herring x Glaucous-winged Gull (hybrid) Larus argentatus x glaucescens
    # Count: 1
    Date:
    Observer: Nick Komar
    Location: Windsor Lake
  8. Black x Eastern Phoebe (hybrid) Sayornis nigricans x phoebe
    # Count: 1
    Date:
    Observer: Adrian Lakin
    Location: Pawnee NG--Adams and Bunker Reservoir Number 1
  9. Bullock's x Baltimore Oriole (hybrid) Icterus bullockii x galbula
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  10. Lazuli x Indigo Bunting (hybrid) Passerina amoena x cyanea
    # Count: 1
    Date:
    Observer: alissa hubbard
    Location: Windsor

Additional Taxa (78)

  1. Snow/Ross's Goose Anser caerulescens/rossii
    # Count: 3
    Date:
    Observer: Chris Petrizzo
    Location: Banner Lakes SWA (closed April 1 - July 15)
  2. Cackling/Canada Goose Branta hutchinsii/canadensis
    # Count: X
    Date:
    Observer: carl starace
    Location: Sandstone Ranch
  3. Trumpeter/Tundra Swan Cygnus buccinator/columbianus
    # Count: 1
    Date:
    Observer: John Vanderpoel
    Location: Union Reservoir
  4. goose sp. Anatidae (goose sp.)
    # Count: 250
    Date:
    Observer: Anonymous eBirder
    Location: Bittersweet Park
  5. Blue-winged/Cinnamon Teal Spatula discors/cyanoptera
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  6. Eurasian/American Wigeon Mareca penelope/americana
    # Count: 2
    Date:
    Observer: Dave Ruane
    Location: Home area (CO)
  7. teal sp. Anatidae sp. (teal sp.)
    # Count: 1
    Date:
    Observer: carl starace
    Location: Sandstone Ranch
  8. dabbling duck sp. Anatidae sp. (dabbling duck sp.)
    # Count: 50
    Date:
    Observer: David Suddjian
    Location: Lower Latham Reservoir area
  9. Greater/Lesser Scaup Aythya marila/affinis
    # Count: 4
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  10. Aythya sp. Aythya sp.
    # Count: 50
    Date:
    Observer: Doug Kibbe
    Location: 75999-75001 Heartland Expressway, Stoneham, Colorado, 40.61, -103.633
  11. duck sp. Anatidae (duck sp.)
    # Count: 3
    Date:
    Observer: Grant Medlin
    Location: St. Vrain SP
  12. Horned/Eared Grebe Podiceps auritus/nigricollis
    # Count: 2
    Date:
    Observer: Amy Davis
    Location: Stewart's Pond
  13. Western/Clark's Grebe Aechmophorus occidentalis/clarkii
    # Count: 10
    Date:
    Observer: David Suddjian
    Location: Lower Latham Reservoir area
  14. pigeon/dove sp. Columbidae sp.
    # Count: 5
    Date:
    Observer: Chris Whitefield
    Location: Homestead Park (Weld Co.)
  15. hummingbird sp. Trochilidae sp.
    # Count: 1
    Date:
    Observer: Dave Meisinger
    Location: Larch Drive
  16. plover sp. Charadriidae sp.
    # Count: 4
    Date:
    Observer: Alex Smolyanskaya
    Location: 515 Leslie St, Briggsdale US-CO (40.6324,-104.3237)
  17. Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceus
    # Count: 21
    Date:
    Observer: Norman Erthal
    Location: Stewart's Pond
  18. Lesser/Greater Yellowlegs Tringa flavipes/melanoleuca
    # Count: 2
    Date:
    Observer: Candice Johnson
    Location: Lower Latham Reservoir area
  19. Tringa sp. Tringa sp.
    # Count: 1
    Date:
    Observer: Steve Hebert
    Location: Stewart's Pond
  20. peep sp. Calidris sp. (peep sp.)
    # Count: 2
    Date:
    Observer: Simon Tolzmann
    Location: Loloff Reservoir
  21. shorebird sp. Charadriiformes sp.
    # Count: 9
    Date:
    Observer: David Suddjian
    Location: Pawnee NG--Adams and Bunker Reservoir Number 1
  22. Herring/Iceland Gull Larus argentatus/glaucoides
    # Count: 2
    Date:
    Observer: Joe Grzybowski
    Location: Windsor Lake
  23. Larus sp. Larus sp.
    # Count: 60
    Date:
    Observer: Grant Medlin
    Location: Lower Latham Reservoir area
  24. gull sp. Larinae sp.
    # Count: 8
    Date:
    Observer: A S
    Location: St. Vrain SP
  25. tern sp. Sterninae sp.
    # Count: 1
    Date:
    Observer: John Rutenbeck
    Location: Union Reservoir
  26. Double-crested/Neotropic Cormorant Nannopterum auritum/brasilianum
    # Count: 1
    Date:
    Observer: Mike Serruto
    Location: 45753–45795 County Road 52, CR 52 Orchard US-CO 40.36482, -104.18437
  27. Yellow-crowned/Black-crowned Night Heron Nycticorax nycticorax/Nyctanassa violacea
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  28. white egret sp. Egretta/Bubulcus/Ardea sp.
    # Count: 1
    Date:
    Observer: Dave Ruane
    Location: Home area (CO)
  29. Glossy/White-faced Ibis Plegadis falcinellus/chihi
    # Count: 8
    Date:
    Observer: zachary Dirks
    Location: Private
  30. Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperii
    # Count: 1
    Date:
    Observer: Jeff Percell
    Location: Percell Backyard, Northridge, Erie, Colorado, US (40.065, -105.042)
  31. Golden/Bald Eagle Aquila chrysaetos/Haliaeetus leucocephalus
    # Count: 2
    Date:
    Observer: Anonymous eBirder
    Location: Pawnee National Grasslands
  32. Buteo sp. Buteo sp.
    # Count: 1
    Date:
    Observer: Grant Medlin
    Location: Pawnee NG Bird Tour—Stops 5-8
  33. Buteo/eagle sp. Buteo/eagle sp.
    # Count: 1
    Date:
    Observer: Jeff Percell
    Location: Morgan Hill Outer Loop, Erie, Colorado, US (40.069, -105.044)
  34. hawk sp. Accipitridae sp. (hawk sp.)
    # Count: 1
    Date:
    Observer: Michelle Gonzales
    Location: Eastman Park
  35. owl sp. Strigiformes sp.
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  36. Downy/Hairy Woodpecker Dryobates pubescens/villosus
    # Count: 2
    Date:
    Observer: Anonymous eBirder
    Location: Backyard
  37. large falcon sp. Falco sp. (large falcon sp.)
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  38. small falcon sp. Falco sp. (small falcon sp.)
    # Count: 2
    Date:
    Observer: Bob Spencer
    Location: Peschel Open Space
  39. falcon sp. Falco sp.
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  40. diurnal raptor sp. Accipitriformes/Falconiformes sp.
    # Count: 1
    Date:
    Observer: Juniper Vane
    Location: Raptor Alley
  41. Western/Eastern Wood-Pewee Contopus sordidulus/virens
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  42. pewee sp. (Contopus sp.) Contopus sp.
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  43. Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/traillii
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  44. Empidonax sp. Empidonax sp.
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  45. Cassin's/Western Kingbird Tyrannus vociferans/verticalis
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  46. new world flycatcher sp. Tyrannidae sp.
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  47. Cassin's/Plumbeous Vireo Vireo cassinii/plumbeus
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  48. solitary vireo sp. Vireo cassinii/solitarius/plumbeus
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  49. crow/raven sp. Corvus sp.
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  50. Black-capped/Mountain Chickadee Poecile atricapillus/gambeli
    # Count: 1
    Date:
    Observer: Chris Blandin
    Location: Home #2
  51. swallow sp. Hirundinidae sp.
    # Count: 2
    Date:
    Observer: David Suddjian
    Location: Stewart's Pond
  52. bluebird sp. Sialia sp.
    # Count: 1
    Date:
    Observer: Rachel Kolokoff Hopper
    Location: 18000–18094 County Road 128, Carr US-CO 40.91356, -104.71729
  53. Catharus sp. Catharus sp.
    # Count: 1
    Date:
    Observer: Brady Schwab
    Location: Pawnee NG--Crow Valley CG
  54. thrush sp. Turdidae sp.
    # Count: 2
    Date:
    Observer: Chris Goulart
    Location: Ireland Reservoir No. 5
  55. new world goldfinch sp. Spinus sp. (goldfinch sp.)
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  56. finch sp. Fringillidae sp.
    # Count: 4
    Date:
    Observer: Caleb Stewart
    Location: Poudre River Trail, Greeley US-CO 40.44998, -104.73371
  57. longspur sp. Calcarius/Rhynchophanes sp.
    # Count: 14
    Date:
    Observer: Peter Burke
    Location: Briggsdale (town)
  58. Spizella sp. Spizella sp.
    # Count: 2
    Date:
    Observer: Michael Adams
    Location: Pawnee NG--Central Plains Experimental Range
  59. Spizella sp./American Tree Sparrow Spizella/Spizelloides sp.
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  60. Zonotrichia sp. Zonotrichia sp.
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  61. Lincoln's/Swamp Sparrow Melospiza lincolnii/georgiana
    # Count: 1
    Date:
    Observer: Chris Goulart
    Location: Pawnee NG Bird Tour—Stops 9-11 (CR-104)
  62. Spotted/Eastern Towhee (Rufous-sided Towhee) Pipilo maculatus/erythrophthalmus
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  63. towhee sp. Melozone/Pipilo sp.
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  64. new world sparrow sp. Passerellidae sp.
    # Count: 1
    Date:
    Observer: Eric Konkol
    Location: 14993 County Road 104, Nunn, Colorado, US (40.74, -104.772)
  65. Western/Eastern Meadowlark Sturnella neglecta/magna
    # Count: 1
    Date:
    Observer: Jay Hutchins
    Location: Union Reservoir
  66. Western/Chihuahuan Meadowlark Sturnella neglecta/lilianae
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  67. Sturnella meadowlark sp. Sturnella sp.
    # Count: 3
    Date:
    Observer: Earl Johnson
    Location: 6175 Easton Circle, Longmont, Colorado, US (40.089, -104.952)
  68. Bullock's/Baltimore Oriole Icterus bullockii/galbula
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  69. new world oriole sp. Icterus sp.
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  70. Rusty/Brewer's Blackbird Euphagus carolinus/cyanocephalus
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  71. grackle sp. Quiscalus sp.
    # Count: 1
    Date:
    Observer: Andrew Core
    Location: SH-14, Stoneham US-CO 40.61061, -103.60048
  72. blackbird sp. Icteridae sp.
    # Count: 30
    Date:
    Observer: Juniper Vane
    Location: 49961-49515 Weld County Road 33, Nunn, Colorado, US (40.722, -104.753)q
  73. new world warbler sp. Parulidae sp.
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  74. tanager sp. (Piranga sp.) Piranga sp.
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  75. Rose-breasted/Black-headed Grosbeak Pheucticus ludovicianus/melanocephalus
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  76. Lazuli/Indigo Bunting Passerina amoena/cyanea
    # Count: 1
    Date:
    Observer: Brian Genge
    Location: Pawnee NG--Crow Valley CG
  77. Passerina sp. Passerina sp.
    # Count: 1
    Date:
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  78. passerine sp. Passeriformes sp.
    # Count: 5
    Date:
    Observer: Eric Konkol
    Location: 51320-51716 County Road 33, Nunn, Colorado, US (40.754, -104.753)