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Rocky Mountain Arsenal NWR--Lake Ladora

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Bird List

Updated ~28 seconds ago
236 All Years 124 This Year 2025 103 This Month Apr 2025
Last Observed First Observed High Count

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  1. Species Name
    Count
    Date
    Observer
    Location

Native and Naturalized (103)

  1. Canada Goose Branta canadensis
    # Count: X
    Date:
    Observer: K McCracken
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  2. Mallard Anas platyrhynchos
    # Count: X
    Date:
    Observer: K McCracken
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  3. Mourning Dove Zenaida macroura
    # Count: 1
    Date:
    Observer: K McCracken
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  4. American Coot Fulica americana
    # Count: X
    Date:
    Observer: K McCracken
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  5. Great Blue Heron Ardea herodias
    # Count: 1
    Date:
    Observer: K McCracken
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  6. Red-winged Blackbird Agelaius phoeniceus
    # Count: X
    Date:
    Observer: K McCracken
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  7. Common Grackle Quiscalus quiscula
    # Count: 2
    Date:
    Observer: K McCracken
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  8. Lesser Scaup Aythya affinis
    # Count: 8
    Date:
    Observer: Colin Woolley
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  9. Bufflehead Bucephala albeola
    # Count: 6
    Date:
    Observer: Colin Woolley
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  10. Virginia Rail Rallus limicola
    # Count: 1
    Date:
    Observer: Colin Woolley
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  11. Ring-billed Gull Larus delawarensis
    # Count: 2
    Date:
    Observer: Colin Woolley
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  12. Swainson's Hawk Buteo swainsoni
    # Count: 1
    Date:
    Observer: Colin Woolley
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  13. Downy Woodpecker Dryobates pubescens
    # Count: 1
    Date:
    Observer: Colin Woolley
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  14. Tree Swallow Tachycineta bicolor
    # Count: 14
    Date:
    Observer: Colin Woolley
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  15. Cliff Swallow Petrochelidon pyrrhonota
    # Count: 25
    Date:
    Observer: Colin Woolley
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  16. Chipping Sparrow Spizella passerina
    # Count: 1
    Date:
    Observer: Colin Woolley
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  17. Song Sparrow Melospiza melodia
    # Count: 2
    Date:
    Observer: Colin Woolley
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  18. Western Meadowlark Sturnella neglecta
    # Count: 2
    Date:
    Observer: Colin Woolley
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  19. Yellow-rumped Warbler Setophaga coronata
    # Count: 2
    Date:
    Observer: Colin Woolley
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  20. Blue-winged Teal Spatula discors
    # Count: 1
    Date:
    Observer: Greg Harrington
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  21. Gadwall Mareca strepera
    # Count: 2
    Date:
    Observer: Greg Harrington
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  22. Green-winged Teal Anas crecca
    # Count: 2
    Date:
    Observer: Greg Harrington
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  23. Ruddy Duck Oxyura jamaicensis
    # Count: 14
    Date:
    Observer: Greg Harrington
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  24. American Avocet Recurvirostra americana
    # Count: 2
    Date:
    Observer: Greg Harrington
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  25. Pied-billed Grebe Podilymbus podiceps
    # Count: 1
    Date:
    Observer: Greg Harrington
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  26. White-faced Ibis Plegadis chihi
    # Count: 3
    Date:
    Observer: Greg Harrington
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  27. Snowy Egret Egretta thula
    # Count: 1
    Date:
    Observer: Greg Harrington
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  28. Northern Flicker Colaptes auratus
    # Count: 2
    Date:
    Observer: Greg Harrington
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  29. Say's Phoebe Sayornis saya
    # Count: 1
    Date:
    Observer: Greg Harrington
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  30. Black-billed Magpie Pica hudsonia
    # Count: 2
    Date:
    Observer: Greg Harrington
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  31. Violet-green Swallow Tachycineta thalassina
    # Count: 12
    Date:
    Observer: Greg Harrington
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  32. Barn Swallow Hirundo rustica
    # Count: 30
    Date:
    Observer: Greg Harrington
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  33. European Starling Sturnus vulgaris
    # Count: 2
    Date:
    Observer: Greg Harrington
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  34. American Robin Turdus migratorius
    # Count: 6
    Date:
    Observer: Greg Harrington
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  35. American Pipit Anthus rubescens
    # Count: 1
    Date:
    Observer: Greg Harrington
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  36. White-crowned Sparrow Zonotrichia leucophrys
    # Count: 8
    Date:
    Observer: Greg Harrington
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  37. Yellow-headed Blackbird Xanthocephalus xanthocephalus
    # Count: 8
    Date:
    Observer: Greg Harrington
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  38. Brown-headed Cowbird Molothrus ater
    # Count: 1
    Date:
    Observer: Greg Harrington
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  39. Brewer's Blackbird Euphagus cyanocephalus
    # Count: 2
    Date:
    Observer: Greg Harrington
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  40. Great-tailed Grackle Quiscalus mexicanus
    # Count: 1
    Date:
    Observer: Greg Harrington
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  41. Cinnamon Teal Spatula cyanoptera
    # Count: 6
    Date:
    Observer: Isaac Boardman
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  42. Northern Shoveler Spatula clypeata
    # Count: 3
    Date:
    Observer: Isaac Boardman
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  43. Killdeer Charadrius vociferus
    # Count: 6
    Date:
    Observer: Isaac Boardman
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  44. Lesser Yellowlegs Tringa flavipes
    # Count: 1
    Date:
    Observer: Isaac Boardman
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  45. Double-crested Cormorant Nannopterum auritum
    # Count: 8
    Date:
    Observer: Isaac Boardman
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  46. Bald Eagle Haliaeetus leucocephalus
    # Count: 1
    Date:
    Observer: Isaac Boardman
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  47. American Kestrel Falco sparverius
    # Count: 1
    Date:
    Observer: Isaac Boardman
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  48. Common Goldeneye Bucephala clangula
    # Count: 1
    Date:
    Observer: Lily Pad
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  49. Marbled Godwit Limosa fedoa
    # Count: 1
    Date:
    Observer: Lily Pad
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  50. Wilson's Snipe Gallinago delicata
    # Count: 1
    Date:
    Observer: Lily Pad
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  51. Greater Yellowlegs Tringa melanoleuca
    # Count: 2
    Date:
    Observer: Christopher B 🦆
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  52. Loggerhead Shrike Lanius ludovicianus
    # Count: 1
    Date:
    Observer: Elisa Jara
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  53. Ring-necked Duck Aythya collaris
    # Count: 1
    Date:
    Observer: Amy Walsh
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  54. Greater Scaup Aythya marila
    # Count: 2
    Date:
    Observer: Amy Walsh
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  55. Black-capped Chickadee Poecile atricapillus
    # Count: 2
    Date:
    Observer: Amy Walsh
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  56. Townsend's Solitaire Myadestes townsendi
    # Count: 1
    Date:
    Observer: Amy Walsh
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  57. House Finch Haemorhous mexicanus
    # Count: 2
    Date:
    Observer: Amy Walsh
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  58. Semipalmated Plover Charadrius semipalmatus
    # Count: 1
    Date:
    Observer: George Ho
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  59. Red-tailed Hawk Buteo jamaicensis
    # Count: 1
    Date:
    Observer: George Ho
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  60. Blue Jay Cyanocitta cristata
    # Count: 1
    Date:
    Observer: Isaac Boardman
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  61. Great Horned Owl Bubo virginianus
    # Count: 1
    Date:
    Observer: Eric Hynes
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  62. Mountain Bluebird Sialia currucoides
    # Count: 2
    Date:
    Observer: Eric Hynes
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  63. Black-crowned Night Heron Nycticorax nycticorax
    # Count: 1
    Date:
    Observer: Osmara Medrano
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  64. American White Pelican Pelecanus erythrorhynchos
    # Count: 3
    Date:
    Observer: Osmara Medrano
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  65. Canvasback Aythya valisineria
    # Count: 1
    Date:
    Observer: Bez Bezuidenhout
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  66. Redhead Aythya americana
    # Count: 2
    Date:
    Observer: Bez Bezuidenhout
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  67. Eared Grebe Podiceps nigricollis
    # Count: 1
    Date:
    Observer: Bez Bezuidenhout
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  68. Horned Grebe Podiceps auritus
    # Count: 2
    Date:
    Observer: Chris Gilbert
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  69. Great Egret Ardea alba
    # Count: 1
    Date:
    Observer: Chris Gilbert
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  70. Burrowing Owl Athene cunicularia
    # Count: 2
    Date:
    Observer: Diane Crookham-Johnson
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  71. Northern Harrier Circus hudsonius
    # Count: 1
    Date:
    Observer: Tyler Greenly
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  72. Horned Lark Eremophila alpestris
    # Count: 1
    Date:
    Observer: Tyler Greenly
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  73. Eurasian Collared-Dove Streptopelia decaocto
    # Count: 1
    Date:
    Observer: George Ho
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  74. American Wigeon Mareca americana
    # Count: 3
    Date:
    Observer: Brian Genge
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  75. Northern Pintail Anas acuta
    # Count: 2
    Date:
    Observer: Brian Genge
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  76. Common Merganser Mergus merganser
    # Count: 3
    Date:
    Observer: Brian Genge
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  77. Rock Pigeon Columba livia
    # Count: 5
    Date:
    Observer: Brian Genge
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  78. Western Grebe Aechmophorus occidentalis
    # Count: 8
    Date:
    Observer: Brian Genge
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  79. American Goldfinch Spinus tristis
    # Count: 3
    Date:
    Observer: Brian Genge
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  80. Dark-eyed Junco Junco hyemalis
    # Count: 1
    Date:
    Observer: Brian Genge
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  81. Long-billed Dowitcher Limnodromus scolopaceus
    # Count: 1
    Date:
    Observer: Todd Deininger
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  82. Caspian Tern Hydroprogne caspia
    # Count: 1
    Date:
    Observer: Todd Deininger
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  83. Osprey Pandion haliaetus
    # Count: 1
    Date:
    Observer: Lily Pad
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  84. Wood Duck Aix sponsa
    # Count: 2
    Date:
    Observer: Gilberto Camargo Tietjen
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  85. American Crow Corvus brachyrhynchos
    # Count: 1
    Date:
    Observer: Shelby McKenna
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  86. Turkey Vulture Cathartes aura
    # Count: X
    Date:
    Observer: Anjan Sapkota
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  87. Belted Kingfisher Megaceryle alcyon
    # Count: X
    Date:
    Observer: Anjan Sapkota
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  88. Solitary Sandpiper Tringa solitaria
    # Count: 1
    Date:
    Observer: Allen Hendrick 1+864.360.5468
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  89. Marsh Wren Cistothorus palustris
    # Count: 1
    Date:
    Observer: Allen Hendrick 1+864.360.5468
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  90. Cedar Waxwing Bombycilla cedrorum
    # Count: 1
    Date:
    Observer: Allen Hendrick 1+864.360.5468
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  91. Peregrine Falcon Falco peregrinus
    # Count: 1
    Date:
    Observer: Jason B Bidgood
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  92. White-breasted Nuthatch Sitta carolinensis
    # Count: 1
    Date:
    Observer: Jason B Bidgood
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  93. California Gull Larus californicus
    # Count: 2
    Date:
    Observer: Greg Harrington
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  94. Bonaparte's Gull Chroicocephalus philadelphia
    # Count: 1
    Date:
    Observer: Jack Robinson
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  95. Franklin's Gull Leucophaeus pipixcan
    # Count: 1
    Date:
    Observer: Mike Serruto
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  96. Wild Turkey Meleagris gallopavo
    # Count: 2
    Date:
    Observer: LEO SNEAD
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  97. Black-necked Stilt Himantopus mexicanus
    # Count: 10
    Date:
    Observer: LEO SNEAD
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  98. Golden Eagle Aquila chrysaetos
    # Count: 1
    Date:
    Observer: LEO SNEAD
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  99. Hooded Merganser Lophodytes cucullatus
    # Count: 2
    Date:
    Observer: Jack Robinson
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  100. American Herring Gull Larus smithsonianus
    # Count: 1
    Date:
    Observer: Lesly B
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  101. Rock Wren Salpinctes obsoletus
    # Count: 1
    Date:
    Observer: Jack Robinson
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  102. Long-billed Curlew Numenius americanus
    # Count: 1
    Date:
    Observer: George Ho
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  103. Hairy Woodpecker Dryobates villosus
    # Count: 1
    Date:
    Observer: George Ho
    Location: Rocky Mountain Arsenal NWR--Lake Ladora

Additional Taxa (5)

  1. Horned/Eared Grebe Podiceps auritus/nigricollis
    # Count: 2
    Date:
    Observer: Chris Kennelly
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  2. Buteo sp. Buteo sp.
    # Count: 1
    Date:
    Observer: Brian Genge
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  3. swallow sp. Hirundinidae sp.
    # Count: 3
    Date:
    Observer: Zak Hepler
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  4. Greater/Lesser Scaup Aythya marila/affinis
    # Count: 1
    Date:
    Observer: Allen Hendrick 1+864.360.5468
    Location: Rocky Mountain Arsenal NWR--Lake Ladora
  5. Lesser/Greater Yellowlegs Tringa flavipes/melanoleuca
    # Count: 1
    Date:
    Observer: Lesly B
    Location: Rocky Mountain Arsenal NWR--Lake Ladora