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Bird List

Updated ~27 seconds ago
275 All Years 132 This Year 2024 77 This Month May 2024
Last Observed First Observed High Count

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  1. Species Name
    Count
    Date
    Observer
    Location

Native and Naturalized (132)

  1. Mallard Anas platyrhynchos
    # Count: 2
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  2. Western Grebe Aechmophorus occidentalis
    # Count: 81
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  3. Rock Pigeon Columba livia
    # Count: 2
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  4. Mourning Dove Zenaida macroura
    # Count: 2
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  5. Killdeer Charadrius vociferus
    # Count: 1
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  6. Spotted Sandpiper Actitis macularius
    # Count: 1
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  7. Semipalmated Sandpiper Calidris pusilla
    # Count: 1
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  8. Ring-billed Gull Larus delawarensis
    # Count: 25
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  9. American White Pelican Pelecanus erythrorhynchos
    # Count: 9
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  10. Osprey Pandion haliaetus
    # Count: 1
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  11. Bald Eagle Haliaeetus leucocephalus
    # Count: 2
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  12. Downy Woodpecker Dryobates pubescens
    # Count: 1
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  13. Northern Flicker Colaptes auratus
    # Count: 1
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  14. Say's Phoebe Sayornis saya
    # Count: 2
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  15. Blue Jay Cyanocitta cristata
    # Count: 1
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  16. Black-capped Chickadee Poecile atricapillus
    # Count: 1
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  17. Barn Swallow Hirundo rustica
    # Count: 6
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  18. House Wren Troglodytes aedon
    # Count: 2
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  19. European Starling Sturnus vulgaris
    # Count: 9
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  20. American Robin Turdus migratorius
    # Count: 2
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  21. House Sparrow Passer domesticus
    # Count: 2
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  22. House Finch Haemorhous mexicanus
    # Count: 3
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  23. American Goldfinch Spinus tristis
    # Count: 4
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  24. Chipping Sparrow Spizella passerina
    # Count: 3
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  25. Lark Sparrow Chondestes grammacus
    # Count: 1
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  26. Song Sparrow Melospiza melodia
    # Count: 5
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  27. Western Meadowlark Sturnella neglecta
    # Count: 4
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  28. Red-winged Blackbird Agelaius phoeniceus
    # Count: 17
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  29. Brown-headed Cowbird Molothrus ater
    # Count: 2
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  30. Common Grackle Quiscalus quiscula
    # Count: 9
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  31. Yellow-rumped Warbler Setophaga coronata
    # Count: 1
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  32. Canada Goose Branta canadensis
    # Count: 2
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  33. Blue-winged Teal Spatula discors
    # Count: 4
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  34. Northern Shoveler Spatula clypeata
    # Count: 4
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  35. Red-breasted Merganser Mergus serrator
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  36. Pied-billed Grebe Podilymbus podiceps
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  37. Eurasian Collared-Dove Streptopelia decaocto
    # Count: 6
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  38. Least Sandpiper Calidris minutilla
    # Count: 2
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  39. Great Blue Heron Ardea herodias
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  40. Swainson's Hawk Buteo swainsoni
    # Count: 2
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  41. Red-tailed Hawk Buteo jamaicensis
    # Count: 3
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  42. Western Kingbird Tyrannus verticalis
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  43. American Crow Corvus brachyrhynchos
    # Count: 2
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  44. Tree Swallow Tachycineta bicolor
    # Count: 20
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  45. Northern Rough-winged Swallow Stelgidopteryx serripennis
    # Count: 2
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  46. Cliff Swallow Petrochelidon pyrrhonota
    # Count: 100
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  47. Clay-colored Sparrow Spizella pallida
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  48. Brewer's Sparrow Spizella breweri
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  49. White-crowned Sparrow Zonotrichia leucophrys
    # Count: 20
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  50. Yellow-headed Blackbird Xanthocephalus xanthocephalus
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  51. Bullock's Oriole Icterus bullockii
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  52. Great-tailed Grackle Quiscalus mexicanus
    # Count: 3
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  53. Gadwall Mareca strepera
    # Count: 2
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  54. Redhead Aythya americana
    # Count: 4
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  55. Ruddy Duck Oxyura jamaicensis
    # Count: 2
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  56. Eared Grebe Podiceps nigricollis
    # Count: 20
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  57. Franklin's Gull Leucophaeus pipixcan
    # Count: 13
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  58. American Kestrel Falco sparverius
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  59. Cinnamon Teal Spatula cyanoptera
    # Count: 1
    Date:
    Observer: John Vanderpoel
    Location: Union Reservoir
  60. American Coot Fulica americana
    # Count: 1
    Date:
    Observer: John Vanderpoel
    Location: Union Reservoir
  61. Marbled Godwit Limosa fedoa
    # Count: 7
    Date:
    Observer: John Vanderpoel
    Location: Union Reservoir
  62. Willet Tringa semipalmata
    # Count: 14
    Date:
    Observer: John Vanderpoel
    Location: Union Reservoir
  63. Baird's Sandpiper Calidris bairdii
    # Count: 2
    Date:
    Observer: John Vanderpoel
    Location: Union Reservoir
  64. Vesper Sparrow Pooecetes gramineus
    # Count: 1
    Date:
    Observer: John Vanderpoel
    Location: Union Reservoir
  65. Brewer's Blackbird Euphagus cyanocephalus
    # Count: 19
    Date:
    Observer: John Vanderpoel
    Location: Union Reservoir
  66. Horned Grebe Podiceps auritus
    # Count: 2
    Date:
    Observer: David Fraide
    Location: Union Reservoir
  67. Greater Yellowlegs Tringa melanoleuca
    # Count: 1
    Date:
    Observer: David Fraide
    Location: Union Reservoir
  68. Virginia Rail Rallus limicola
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  69. Great Horned Owl Bubo virginianus
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  70. White-breasted Nuthatch Sitta carolinensis
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  71. Wilson's Phalarope Phalaropus tricolor
    # Count: 2
    Date:
    Observer: David Fraide
    Location: Union Reservoir
  72. Double-crested Cormorant Nannopterum auritum
    # Count: 1
    Date:
    Observer: John Vanderpoel
    Location: Union Reservoir
  73. Common Yellowthroat Geothlypis trichas
    # Count: 1
    Date:
    Observer: John Vanderpoel
    Location: Union Reservoir
  74. Western Sandpiper Calidris mauri
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  75. Caspian Tern Hydroprogne caspia
    # Count: 3
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  76. Northern Harrier Circus hudsonius
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  77. American Avocet Recurvirostra americana
    # Count: 1
    Date:
    Observer: Jay Hutchins
    Location: Union Reservoir
  78. Clark's Grebe Aechmophorus clarkii
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  79. Violet-green Swallow Tachycineta thalassina
    # Count: 50
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  80. Lesser Scaup Aythya affinis
    # Count: 4
    Date:
    Observer: Cole Wild
    Location: Union Reservoir
  81. Horned Lark Eremophila alpestris
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Union Reservoir
  82. Savannah Sparrow Passerculus sandwichensis
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Union Reservoir
  83. Semipalmated Plover Charadrius semipalmatus
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  84. Long-billed Dowitcher Limnodromus scolopaceus
    # Count: 16
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  85. American Wigeon Mareca americana
    # Count: 2
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  86. Solitary Sandpiper Tringa solitaria
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  87. Rock Wren Salpinctes obsoletus
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  88. Bonaparte's Gull Chroicocephalus philadelphia
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  89. California Gull Larus californicus
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  90. Ruby-crowned Kinglet Corthylio calendula
    # Count: 1
    Date:
    Observer: John Vanderpoel
    Location: Union Reservoir
  91. Harris's Sparrow Zonotrichia querula
    # Count: 1
    Date:
    Observer: John Vanderpoel
    Location: Union Reservoir
  92. Green-winged Teal Anas crecca
    # Count: 1
    Date:
    Observer: John Vanderpoel
    Location: Union Reservoir
  93. Spotted Towhee Pipilo maculatus
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  94. White-faced Ibis Plegadis chihi
    # Count: 14
    Date:
    Observer: Winston Liu
    Location: Union Reservoir
  95. Marsh Wren Cistothorus palustris
    # Count: 1
    Date:
    Observer: Jay Hutchins
    Location: Union Reservoir
  96. Herring Gull Larus argentatus
    # Count: 2
    Date:
    Observer: David Fraide
    Location: Union Reservoir
  97. Lincoln's Sparrow Melospiza lincolnii
    # Count: 1
    Date:
    Observer: Winston Liu
    Location: Union Reservoir
  98. Merlin Falco columbarius
    # Count: 1
    Date:
    Observer: John Vanderpoel
    Location: Union Reservoir
  99. Common Merganser Mergus merganser
    # Count: 2
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  100. Belted Kingfisher Megaceryle alcyon
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  101. Black-bellied Plover Pluvialis squatarola
    # Count: 1
    Date:
    Observer: Todd Deininger
    Location: Union Reservoir
  102. Bufflehead Bucephala albeola
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  103. Common Raven Corvus corax
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  104. Wilson's Snipe Gallinago delicata
    # Count: 1
    Date:
    Observer: Winston Liu
    Location: Union Reservoir
  105. Peregrine Falcon Falco peregrinus
    # Count: 1
    Date:
    Observer: David Fraide
    Location: Union Reservoir
  106. Sage Thrasher Oreoscoptes montanus
    # Count: 1
    Date:
    Observer: John Vanderpoel
    Location: Union Reservoir
  107. Greater Scaup Aythya marila
    # Count: 2
    Date:
    Observer: John Vanderpoel
    Location: Union Reservoir
  108. Turkey Vulture Cathartes aura
    # Count: 1
    Date:
    Observer: John Vanderpoel
    Location: Union Reservoir
  109. Canvasback Aythya valisineria
    # Count: 2
    Date:
    Observer: John Vanderpoel
    Location: Union Reservoir
  110. Ring-necked Duck Aythya collaris
    # Count: 7
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  111. Cooper's Hawk Accipiter cooperii
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  112. Wood Duck Aix sponsa
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  113. Northern Pintail Anas acuta
    # Count: 3
    Date:
    Observer: Jay Hutchins
    Location: Union Reservoir
  114. Common Goldeneye Bucephala clangula
    # Count: 2
    Date:
    Observer: David Fraide
    Location: Union Reservoir
  115. Dark-eyed Junco Junco hyemalis
    # Count: 2
    Date:
    Observer: Christian Nunes
    Location: Union Reservoir
  116. Lesser Yellowlegs Tringa flavipes
    # Count: 1
    Date:
    Observer: John Vanderpoel
    Location: Union Reservoir
  117. Black-necked Stilt Himantopus mexicanus
    # Count: 1
    Date:
    Observer: Jay Hutchins
    Location: Union Reservoir
  118. Mountain Bluebird Sialia currucoides
    # Count: 2
    Date:
    Observer: David Fraide
    Location: Union Reservoir
  119. Black-billed Magpie Pica hudsonia
    # Count: 1
    Date:
    Observer: David Fraide
    Location: Union Reservoir
  120. Hooded Merganser Lophodytes cucullatus
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  121. Cackling Goose Branta hutchinsii
    # Count: 5
    Date:
    Observer: Sarah Spotten
    Location: Union Reservoir
  122. American Tree Sparrow Spizelloides arborea
    # Count: 2
    Date:
    Observer: John Vanderpoel
    Location: Union Reservoir
  123. Bushtit Psaltriparus minimus
    # Count: 1
    Date:
    Observer: Patricia Cullen
    Location: Union Reservoir
  124. Iceland Gull Larus glaucoides
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  125. Northern Shrike Lanius borealis
    # Count: 1
    Date:
    Observer: Donna Stumpp
    Location: Union Reservoir
  126. Snow Goose Anser caerulescens
    # Count: 8
    Date:
    Observer: Sarah Spotten
    Location: Union Reservoir
  127. Barrow's Goldeneye Bucephala islandica
    # Count: 1
    Date:
    Observer: Adrian Lakin
    Location: Union Reservoir
  128. Trumpeter Swan Cygnus buccinator
    # Count: 1
    Date:
    Observer: Kyle Carlsen
    Location: Union Reservoir
  129. Long-tailed Duck Clangula hyemalis
    # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  130. Common Loon Gavia immer
    # Count: 1
    Date:
    Observer: David Fraide
    Location: Union Reservoir
  131. Rough-legged Hawk Buteo lagopus
    # Count: 1
    Date:
    Observer: David Fraide
    Location: Union Reservoir
  132. Ferruginous Hawk Buteo regalis
    # Count: 1
    Date:
    Observer: Winston Liu
    Location: Union Reservoir

Additional Taxa (12)

  1. peep sp. Calidris sp. (peep sp.)
    # Count: 6
    Date:
    Observer: Peter Williams
    Location: Union Reservoir
  2. swallow sp. Hirundinidae sp.
    # Count: 200
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  3. Western/Clark's Grebe Aechmophorus occidentalis/clarkii
    # Count: 30
    Date:
    Observer: John Vanderpoel
    Location: Union Reservoir
  4. Greater/Lesser Scaup Aythya marila/affinis
    # Count: 4
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  5. Western/Eastern Meadowlark Sturnella neglecta/magna
    # Count: 1
    Date:
    Observer: Jay Hutchins
    Location: Union Reservoir
  6. gull sp. Larinae sp.
    # Count: X
    Date:
    Observer: Susan Rosine
    Location: Union Reservoir
  7. duck sp. Anatidae (duck sp.)
    # Count: 6
    Date:
    Observer: Deb Piranian
    Location: Union Reservoir
  8. Cackling/Canada Goose Branta hutchinsii/canadensis
    # Count: 12
    Date:
    Observer: Alex Cruz Jr 🦤
    Location: Union Reservoir
  9. pigeon/dove sp. Columbidae sp.
    # Count: 2
    Date:
    Observer: Alex Cruz Jr 🦤
    Location: Union Reservoir
  10. Buteo sp. Buteo sp.
    # Count: 1
    Date:
    Observer: Alex Cruz Jr 🦤
    Location: Union Reservoir
  11. new world sparrow sp. Passerellidae sp.
    # Count: 1
    Date:
    Observer: Alex Cruz Jr 🦤
    Location: Union Reservoir
  12. Trumpeter/Tundra Swan Cygnus buccinator/columbianus
    # Count: 1
    Date:
    Observer: John Vanderpoel
    Location: Union Reservoir