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Bird List

Updated ~8 seconds ago
161 All Years 98 This Year 2024 17 This Month Jun 2024
Last Observed First Observed High Count

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  1. Species Name
    Count
    Date
    Observer
    Location

Native and Naturalized (161)

  1. Canada Goose Branta canadensis
    # Count: 5
    Date:
    Observer: Torgil Zethson
    Location: Arroyo Del Valle
  2. Wood Duck Aix sponsa
    # Count: 1
    Date:
    Observer: B T
    Location: Arroyo Del Valle
  3. Northern Shoveler Spatula clypeata
    # Count: 10
    Date:
    Observer: Stefan Karkuff
    Location: Arroyo Del Valle
  4. Gadwall Mareca strepera
    # Count: 4
    Date:
    Observer: Rosemarie Richardson
    Location: Arroyo Del Valle
  5. American Wigeon Mareca americana
    # Count: 4
    Date:
    Observer: Yvette MacDonald
    Location: Arroyo Del Valle
  6. Mallard Anas platyrhynchos
    # Count: 1
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  7. Ring-necked Duck Aythya collaris
    # Count: 2
    Date:
    Observer: Aaron McCullough
    Location: Arroyo Del Valle
  8. Bufflehead Bucephala albeola
    # Count: 19
    Date:
    Observer: Aaron McCullough
    Location: Arroyo Del Valle
  9. Common Goldeneye Bucephala clangula
    # Count: X
    Date:
    Observer: Emily Mullins
    Location: Arroyo Del Valle
  10. Hooded Merganser Lophodytes cucullatus
    # Count: 2
    Date:
    Observer: Aaron McCullough
    Location: Arroyo Del Valle
  11. Common Merganser Mergus merganser
    # Count: 6
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  12. Ruddy Duck Oxyura jamaicensis
    # Count: 8
    Date:
    Observer: Rosemarie Richardson
    Location: Arroyo Del Valle
  13. California Quail Callipepla californica
    # Count: 24
    Date:
    Observer: Anonymous eBirder
    Location: Arroyo Del Valle
  14. Wild Turkey Meleagris gallopavo
    # Count: 2
    Date:
    Observer: James Watts, Jr
    Location: Arroyo Del Valle
  15. Pied-billed Grebe Podilymbus podiceps
    # Count: 3
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  16. Eared Grebe Podiceps nigricollis
    # Count: 6
    Date:
    Observer: Aaron McCullough
    Location: Arroyo Del Valle
  17. Western Grebe Aechmophorus occidentalis
    # Count: 1
    Date:
    Observer: eildert beeftink
    Location: Arroyo Del Valle
  18. Clark's Grebe Aechmophorus clarkii
    # Count: 2
    Date:
    Observer: Jim Hufford
    Location: Arroyo Del Valle
  19. Rock Pigeon Columba livia
    # Count: 20
    Date:
    Observer: Sue Morgan
    Location: Arroyo Del Valle
  20. Band-tailed Pigeon Patagioenas fasciata
    # Count: 2
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  21. Eurasian Collared-Dove Streptopelia decaocto
    # Count: 1
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  22. Mourning Dove Zenaida macroura
    # Count: X
    Date:
    Observer: A Tasoff
    Location: Arroyo Del Valle
  23. Vaux's Swift Chaetura vauxi
    # Count: 2
    Date:
    Observer: Gena Zolotar
    Location: Arroyo Del Valle
  24. White-throated Swift Aeronautes saxatalis
    # Count: 4
    Date:
    Observer: B T
    Location: Arroyo Del Valle
  25. Anna's Hummingbird Calypte anna
    # Count: 3
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  26. Calliope Hummingbird Selasphorus calliope
    # Count: 2
    Date:
    Observer: Alex Henry
    Location: Arroyo Del Valle
  27. Rufous Hummingbird Selasphorus rufus
    # Count: 1
    Date:
    Observer: Zac Denning
    Location: Arroyo Del Valle
  28. Allen's Hummingbird Selasphorus sasin
    # Count: 1
    Date:
    Observer: Peter Shen
    Location: Arroyo Del Valle
  29. Virginia Rail Rallus limicola
    # Count: 1
    Date:
    Observer: Ed Pandolfino
    Location: Arroyo Del Valle
  30. Sora Porzana carolina
    # Count: 1
    Date:
    Observer: B T
    Location: Arroyo Del Valle
  31. American Coot Fulica americana
    # Count: 1
    Date:
    Observer: Maggie Reuter
    Location: Arroyo Del Valle
  32. American Avocet Recurvirostra americana
    # Count: 7
    Date:
    Observer: Dean LaTray
    Location: Arroyo Del Valle
  33. Killdeer Charadrius vociferus
    # Count: 1
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  34. Spotted Sandpiper Actitis macularius
    # Count: 1
    Date:
    Observer: Alex Henry
    Location: Arroyo Del Valle
  35. Western Sandpiper Calidris mauri
    # Count: 8
    Date:
    Observer: Rosemarie Richardson
    Location: Arroyo Del Valle
  36. Western Gull Larus occidentalis
    # Count: 3
    Date:
    Observer: Adi Rao
    Location: Arroyo Del Valle
  37. Herring Gull Larus argentatus
    # Count: 1
    Date:
    Observer: Keith Bailey
    Location: Arroyo Del Valle
  38. California Gull Larus californicus
    # Count: 1
    Date:
    Observer: Yvette MacDonald
    Location: Arroyo Del Valle
  39. Double-crested Cormorant Nannopterum auritum
    # Count: 1
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  40. American White Pelican Pelecanus erythrorhynchos
    # Count: 8
    Date:
    Observer: Luke Gutierrez
    Location: Arroyo Del Valle
  41. Black-crowned Night Heron Nycticorax nycticorax
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Arroyo Del Valle
  42. Snowy Egret Egretta thula
    # Count: 1
    Date:
    Observer: william hoppes
    Location: Arroyo Del Valle
  43. Green Heron Butorides virescens
    # Count: 1
    Date:
    Observer: Alex Henry
    Location: Arroyo Del Valle
  44. Great Egret Ardea alba
    # Count: 1
    Date:
    Observer: Ohlone Audubon Eastern Alameda Cty CBC Area 8
    Location: Arroyo Del Valle
  45. Great Blue Heron Ardea herodias
    # Count: 1
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  46. Turkey Vulture Cathartes aura
    # Count: 2
    Date:
    Observer: Anonymous eBirder
    Location: Arroyo Del Valle
  47. Osprey Pandion haliaetus
    # Count: 1
    Date:
    Observer: Rachel Lawrence
    Location: Arroyo Del Valle
  48. White-tailed Kite Elanus leucurus
    # Count: 1
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  49. Golden Eagle Aquila chrysaetos
    # Count: 2
    Date:
    Observer: Arnold Joe
    Location: Arroyo Del Valle
  50. Northern Harrier Circus hudsonius
    # Count: 1
    Date:
    Observer: Ohlone Audubon Eastern Alameda Cty CBC Area 10
    Location: Arroyo Del Valle
  51. Sharp-shinned Hawk Accipiter striatus
    # Count: 1
    Date:
    Observer: Scott Taylor
    Location: Arroyo Del Valle
  52. Cooper's Hawk Accipiter cooperii
    # Count: X
    Date:
    Observer: A Tasoff
    Location: Arroyo Del Valle
  53. Bald Eagle Haliaeetus leucocephalus
    # Count: 1
    Date:
    Observer: B T
    Location: Arroyo Del Valle
  54. Red-shouldered Hawk Buteo lineatus
    # Count: 1
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  55. Swainson's Hawk Buteo swainsoni
    # Count: 1
    Date:
    Observer: Nat Smale
    Location: Arroyo Del Valle
  56. Red-tailed Hawk Buteo jamaicensis
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Arroyo Del Valle
  57. Barn Owl Tyto alba
    # Count: 1
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  58. Western Screech-Owl Megascops kennicottii
    # Count: X
    Date:
    Observer: Suzie Silverman
    Location: Arroyo Del Valle
  59. Great Horned Owl Bubo virginianus
    # Count: 1
    Date:
    Observer: James Watts, Jr
    Location: Arroyo Del Valle
  60. Belted Kingfisher Megaceryle alcyon
    # Count: 1
    Date:
    Observer: Tim D
    Location: Arroyo Del Valle
  61. Red-breasted Sapsucker Sphyrapicus ruber
    # Count: 1
    Date:
    Observer: B T
    Location: Arroyo Del Valle
  62. Lewis's Woodpecker Melanerpes lewis
    # Count: 1
    Date:
    Observer: Kyoko Takayama
    Location: Arroyo Del Valle
  63. Acorn Woodpecker Melanerpes formicivorus
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Arroyo Del Valle
  64. Downy Woodpecker Dryobates pubescens
    # Count: 1
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  65. Nuttall's Woodpecker Dryobates nuttallii
    # Count: X
    Date:
    Observer: A Tasoff
    Location: Arroyo Del Valle
  66. Hairy Woodpecker Dryobates villosus
    # Count: 1
    Date:
    Observer: Gerry Laird
    Location: Arroyo Del Valle
  67. Northern Flicker Colaptes auratus
    # Count: 2
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  68. American Kestrel Falco sparverius
    # Count: 3
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  69. Merlin Falco columbarius
    # Count: 1
    Date:
    Observer: Alex Henry
    Location: Arroyo Del Valle
  70. Peregrine Falcon Falco peregrinus
    # Count: 1
    Date:
    Observer: Derek Heins
    Location: Arroyo Del Valle
  71. Prairie Falcon Falco mexicanus
    # Count: 2
    Date:
    Observer: Rachel Lawrence
    Location: Arroyo Del Valle
  72. Olive-sided Flycatcher Contopus cooperi
    # Count: 1
    Date:
    Observer: Lucas Corneliussen
    Location: Arroyo Del Valle
  73. Western Wood-Pewee Contopus sordidulus
    # Count: 1
    Date:
    Observer: Sue Morgan
    Location: Arroyo Del Valle
  74. Willow Flycatcher Empidonax traillii
    # Count: 1
    Date:
    Observer: John Harris
    Location: Arroyo Del Valle
  75. Hammond's Flycatcher Empidonax hammondii
    # Count: 1
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  76. Dusky Flycatcher Empidonax oberholseri
    # Count: 1
    Date:
    Observer: Dana Bangs
    Location: Arroyo Del Valle
  77. Western Flycatcher Empidonax difficilis
    # Count: 1
    Date:
    Observer: B T
    Location: Arroyo Del Valle
  78. Black Phoebe Sayornis nigricans
    # Count: X
    Date:
    Observer: A Tasoff
    Location: Arroyo Del Valle
  79. Say's Phoebe Sayornis saya
    # Count: 2
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  80. Ash-throated Flycatcher Myiarchus cinerascens
    # Count: 4
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  81. Western Kingbird Tyrannus verticalis
    # Count: 1
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  82. Hutton's Vireo Vireo huttoni
    # Count: 1
    Date:
    Observer: Glenn Phillips
    Location: Arroyo Del Valle
  83. Cassin's Vireo Vireo cassinii
    # Count: 1
    Date:
    Observer: Erica Rutherford/ John Colbert
    Location: Arroyo Del Valle
  84. Warbling Vireo Vireo gilvus
    # Count: 1
    Date:
    Observer: James Watts, Jr
    Location: Arroyo Del Valle
  85. Loggerhead Shrike Lanius ludovicianus
    # Count: 1
    Date:
    Observer: Vicki Robinson
    Location: Arroyo Del Valle
  86. Steller's Jay Cyanocitta stelleri
    # Count: 2
    Date:
    Observer: B T
    Location: Arroyo Del Valle
  87. California Scrub-Jay Aphelocoma californica
    # Count: X
    Date:
    Observer: A Tasoff
    Location: Arroyo Del Valle
  88. Yellow-billed Magpie Pica nuttalli
    # Count: 2
    Date:
    Observer: David C
    Location: Arroyo Del Valle
  89. American Crow Corvus brachyrhynchos
    # Count: X
    Date:
    Observer: A Tasoff
    Location: Arroyo Del Valle
  90. Common Raven Corvus corax
    # Count: X
    Date:
    Observer: A Tasoff
    Location: Arroyo Del Valle
  91. Chestnut-backed Chickadee Poecile rufescens
    # Count: 1
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  92. Oak Titmouse Baeolophus inornatus
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Arroyo Del Valle
  93. Tree Swallow Tachycineta bicolor
    # Count: X
    Date:
    Observer: A Tasoff
    Location: Arroyo Del Valle
  94. Violet-green Swallow Tachycineta thalassina
    # Count: 1
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  95. Northern Rough-winged Swallow Stelgidopteryx serripennis
    # Count: 2
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  96. Barn Swallow Hirundo rustica
    # Count: 3
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  97. Cliff Swallow Petrochelidon pyrrhonota
    # Count: 2
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  98. Bushtit Psaltriparus minimus
    # Count: 10
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  99. Wrentit Chamaea fasciata
    # Count: 2
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  100. Ruby-crowned Kinglet Corthylio calendula
    # Count: 1
    Date:
    Observer: Yvette MacDonald
    Location: Arroyo Del Valle
  101. Golden-crowned Kinglet Regulus satrapa
    # Count: 1
    Date:
    Observer: Rosemarie Richardson
    Location: Arroyo Del Valle
  102. White-breasted Nuthatch Sitta carolinensis
    # Count: X
    Date:
    Observer: A Tasoff
    Location: Arroyo Del Valle
  103. Red-breasted Nuthatch Sitta canadensis
    # Count: 1
    Date:
    Observer: Erica Rutherford/ John Colbert
    Location: Arroyo Del Valle
  104. Brown Creeper Certhia americana
    # Count: 1
    Date:
    Observer: Erica Rutherford/ John Colbert
    Location: Arroyo Del Valle
  105. Blue-gray Gnatcatcher Polioptila caerulea
    # Count: 1
    Date:
    Observer: Michael Park
    Location: Arroyo Del Valle
  106. Rock Wren Salpinctes obsoletus
    # Count: 1
    Date:
    Observer: David Yeamans
    Location: Arroyo Del Valle
  107. Canyon Wren Catherpes mexicanus
    # Count: 1
    Date:
    Observer: Dallas Levey
    Location: Arroyo Del Valle
  108. House Wren Troglodytes aedon
    # Count: 2
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  109. Pacific Wren Troglodytes pacificus
    # Count: 1
    Date:
    Observer: Fred Bouchard
    Location: Arroyo Del Valle
  110. Marsh Wren Cistothorus palustris
    # Count: 1
    Date:
    Observer: George Exum
    Location: Arroyo Del Valle
  111. Bewick's Wren Thryomanes bewickii
    # Count: 5
    Date:
    Observer: Christopher Monjaras
    Location: Arroyo Del Valle
  112. European Starling Sturnus vulgaris
    # Count: 24
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  113. California Thrasher Toxostoma redivivum
    # Count: 1
    Date:
    Observer: James Watts, Jr
    Location: Arroyo Del Valle
  114. Northern Mockingbird Mimus polyglottos
    # Count: 1
    Date:
    Observer: Gerry Laird
    Location: Arroyo Del Valle
  115. Western Bluebird Sialia mexicana
    # Count: 2
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  116. Varied Thrush Ixoreus naevius
    # Count: 1
    Date:
    Observer: Harrison Horn
    Location: Arroyo Del Valle
  117. Swainson's Thrush Catharus ustulatus
    # Count: 3
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  118. Hermit Thrush Catharus guttatus
    # Count: 2
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  119. American Robin Turdus migratorius
    # Count: 1
    Date:
    Observer: Dallas Levey
    Location: Arroyo Del Valle
  120. Cedar Waxwing Bombycilla cedrorum
    # Count: 5
    Date:
    Observer: Bob Dunn
    Location: Arroyo Del Valle
  121. Phainopepla Phainopepla nitens
    # Count: 1
    Date:
    Observer: Rachel Lawrence
    Location: Arroyo Del Valle
  122. House Sparrow Passer domesticus
    # Count: 3
    Date:
    Observer: Adi Rao
    Location: Arroyo Del Valle
  123. American Pipit Anthus rubescens
    # Count: 1
    Date:
    Observer: Harrison Horn
    Location: Arroyo Del Valle
  124. House Finch Haemorhous mexicanus
    # Count: X
    Date:
    Observer: A Tasoff
    Location: Arroyo Del Valle
  125. Purple Finch Haemorhous purpureus
    # Count: 1
    Date:
    Observer: Bill Chen
    Location: Arroyo Del Valle
  126. Pine Siskin Spinus pinus
    # Count: 1
    Date:
    Observer: Ohlone Audubon Eastern Alameda Cty CBC Area 10
    Location: Arroyo Del Valle
  127. Lesser Goldfinch Spinus psaltria
    # Count: X
    Date:
    Observer: A Tasoff
    Location: Arroyo Del Valle
  128. Lawrence's Goldfinch Spinus lawrencei
    # Count: 2
    Date:
    Observer: Lucas Corneliussen
    Location: Arroyo Del Valle
  129. American Goldfinch Spinus tristis
    # Count: 1
    Date:
    Observer: Arnold Joe
    Location: Arroyo Del Valle
  130. Chipping Sparrow Spizella passerina
    # Count: 1
    Date:
    Observer: Lucas Corneliussen
    Location: Arroyo Del Valle
  131. Fox Sparrow Passerella iliaca
    # Count: 1
    Date:
    Observer: James Watts, Jr
    Location: Arroyo Del Valle
  132. Dark-eyed Junco Junco hyemalis
    # Count: 2
    Date:
    Observer: Bob Dunn
    Location: Arroyo Del Valle
  133. White-crowned Sparrow Zonotrichia leucophrys
    # Count: 1
    Date:
    Observer: Bob Dunn
    Location: Arroyo Del Valle
  134. Golden-crowned Sparrow Zonotrichia atricapilla
    # Count: 1
    Date:
    Observer: Christina Garcia
    Location: Arroyo Del Valle
  135. White-throated Sparrow Zonotrichia albicollis
    # Count: 1
    Date:
    Observer: Erica Rutherford/ John Colbert
    Location: Arroyo Del Valle
  136. Savannah Sparrow Passerculus sandwichensis
    # Count: 1
    Date:
    Observer: Harrison Horn
    Location: Arroyo Del Valle
  137. Song Sparrow Melospiza melodia
    # Count: 7
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  138. Lincoln's Sparrow Melospiza lincolnii
    # Count: 1
    Date:
    Observer: Erica Rutherford/ John Colbert
    Location: Arroyo Del Valle
  139. California Towhee Melozone crissalis
    # Count: 5
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  140. Rufous-crowned Sparrow Aimophila ruficeps
    # Count: 6
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  141. Spotted Towhee Pipilo maculatus
    # Count: 1
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  142. Yellow-breasted Chat Icteria virens
    # Count: 1
    Date:
    Observer: Whitney Grover
    Location: Arroyo Del Valle
  143. Western Meadowlark Sturnella neglecta
    # Count: 2
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  144. Hooded Oriole Icterus cucullatus
    # Count: 1
    Date:
    Observer: Bill Chen
    Location: Arroyo Del Valle
  145. Bullock's Oriole Icterus bullockii
    # Count: 1
    Date:
    Observer: Erica Rutherford/ John Colbert
    Location: Arroyo Del Valle
  146. Red-winged Blackbird Agelaius phoeniceus
    # Count: 4
    Date:
    Observer: william hoppes
    Location: Arroyo Del Valle
  147. Tricolored Blackbird Agelaius tricolor
    # Count: 1
    Date:
    Observer: Kenneth Reese
    Location: Arroyo Del Valle
  148. Brown-headed Cowbird Molothrus ater
    # Count: 1
    Date:
    Observer: Dallas Levey
    Location: Arroyo Del Valle
  149. Brewer's Blackbird Euphagus cyanocephalus
    # Count: 2
    Date:
    Observer: Adi Rao
    Location: Arroyo Del Valle
  150. Orange-crowned Warbler Leiothlypis celata
    # Count: 1
    Date:
    Observer: Bob Dunn
    Location: Arroyo Del Valle
  151. Nashville Warbler Leiothlypis ruficapilla
    # Count: 1
    Date:
    Observer: David Yeamans
    Location: Arroyo Del Valle
  152. MacGillivray's Warbler Geothlypis tolmiei
    # Count: 1
    Date:
    Observer: Bill Chen
    Location: Arroyo Del Valle
  153. Common Yellowthroat Geothlypis trichas
    # Count: 1
    Date:
    Observer: Erica Rutherford/ John Colbert
    Location: Arroyo Del Valle
  154. Yellow Warbler Setophaga petechia
    # Count: 1
    Date:
    Observer: B T
    Location: Arroyo Del Valle
  155. Yellow-rumped Warbler Setophaga coronata
    # Count: 1
    Date:
    Observer: B T
    Location: Arroyo Del Valle
  156. Black-throated Gray Warbler Setophaga nigrescens
    # Count: 1
    Date:
    Observer: Torgil Zethson
    Location: Arroyo Del Valle
  157. Townsend's Warbler Setophaga townsendi
    # Count: 1
    Date:
    Observer: Erica Rutherford/ John Colbert
    Location: Arroyo Del Valle
  158. Wilson's Warbler Cardellina pusilla
    # Count: 1
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  159. Western Tanager Piranga ludoviciana
    # Count: 1
    Date:
    Observer: Dallas Levey
    Location: Arroyo Del Valle
  160. Black-headed Grosbeak Pheucticus melanocephalus
    # Count: 1
    Date:
    Observer: Bob Dunn
    Location: Arroyo Del Valle
  161. Lazuli Bunting Passerina amoena
    # Count: 1
    Date:
    Observer: Dallas Levey
    Location: Arroyo Del Valle

Additional Taxa (27)

  1. Greater/Lesser Scaup Aythya marila/affinis
    # Count: X
    Date:
    Observer: Jerry Ting
    Location: Arroyo Del Valle
  2. duck sp. Anatidae (duck sp.)
    # Count: 1
    Date:
    Observer: Terri Bostater
    Location: Arroyo Del Valle
  3. Western/Clark's Grebe Aechmophorus occidentalis/clarkii
    # Count: 5
    Date:
    Observer: Aaron McCullough
    Location: Arroyo Del Valle
  4. swift sp. Apodidae sp.
    # Count: 2
    Date:
    Observer: Ken S
    Location: Arroyo Del Valle
  5. Rufous/Allen's Hummingbird Selasphorus rufus/sasin
    # Count: 1
    Date:
    Observer: Rachel Lawrence
    Location: Arroyo Del Valle
  6. Selasphorus sp. Selasphorus sp.
    # Count: 1
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  7. hummingbird sp. Trochilidae sp.
    # Count: 2
    Date:
    Observer: B T
    Location: Arroyo Del Valle
  8. Larus sp. Larus sp.
    # Count: 3
    Date:
    Observer: Harrison Horn
    Location: Arroyo Del Valle
  9. gull sp. Larinae sp.
    # Count: 2
    Date:
    Observer: Erica Rutherford/ John Colbert
    Location: Arroyo Del Valle
  10. cormorant sp. Phalacrocoracidae sp.
    # Count: 1
    Date:
    Observer: Isabelle Reddy
    Location: Arroyo Del Valle
  11. Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperii
    # Count: 1
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  12. Accipiter sp. Accipiter sp.
    # Count: 1
    Date:
    Observer: Dawn Lemoine
    Location: Arroyo Del Valle
  13. Buteo sp. Buteo sp.
    # Count: 1
    Date:
    Observer: B T
    Location: Arroyo Del Valle
  14. hawk sp. Accipitridae sp. (hawk sp.)
    # Count: 1
    Date:
    Observer: Nadine Henderson
    Location: Arroyo Del Valle
  15. sapsucker sp. Sphyrapicus sp.
    # Count: 1
    Date:
    Observer: Rosemarie Richardson
    Location: Arroyo Del Valle
  16. Downy/Hairy Woodpecker Dryobates pubescens/villosus
    # Count: 2
    Date:
    Observer: Sam S
    Location: Arroyo Del Valle
  17. falcon sp. Falco sp.
    # Count: 1
    Date:
    Observer: Holly Thomas
    Location: Arroyo Del Valle
  18. Empidonax sp. Empidonax sp.
    # Count: 2
    Date:
    Observer: Alex Henry
    Location: Arroyo Del Valle
  19. new world flycatcher sp. Tyrannidae sp.
    # Count: 1
    Date:
    Observer: B T
    Location: Arroyo Del Valle
  20. Tree/Violet-green Swallow Tachycineta bicolor/thalassina
    # Count: 1
    Date:
    Observer: Arnold Joe
    Location: Arroyo Del Valle
  21. swallow sp. Hirundinidae sp.
    # Count: 5
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  22. House/Purple Finch Haemorhous mexicanus/purpureus
    # Count: 3
    Date:
    Observer: Sam S
    Location: Arroyo Del Valle
  23. Zonotrichia sp. Zonotrichia sp.
    # Count: 3
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  24. new world sparrow sp. Passerellidae sp.
    # Count: 2
    Date:
    Observer: Torgil Zethson
    Location: Arroyo Del Valle
  25. blackbird sp. Icteridae sp.
    # Count: 5
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle
  26. new world warbler sp. Parulidae sp.
    # Count: 2
    Date:
    Observer: B T
    Location: Arroyo Del Valle
  27. passerine sp. Passeriformes sp.
    # Count: 25
    Date:
    Observer: Sharon J
    Location: Arroyo Del Valle