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Hayward Regional Shoreline--Cogswell Marsh

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Bird List

Updated ~8 seconds ago
163 All Years 77 This Year 2024 37 This Month Jun 2024
Last Observed First Observed High Count

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  1. Species Name
    Count
    Date
    Observer
    Location

Native and Naturalized (163)

  1. Canada Goose Branta canadensis
    # Count: 30
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  2. Gadwall Mareca strepera
    # Count: 4
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  3. Mallard Anas platyrhynchos
    # Count: 1
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  4. Ruddy Duck Oxyura jamaicensis
    # Count: 2
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  5. Wild Turkey Meleagris gallopavo
    # Count: 1
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  6. Eared Grebe Podiceps nigricollis
    # Count: 2
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  7. Rock Pigeon Columba livia
    # Count: 1
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  8. Black-necked Stilt Himantopus mexicanus
    # Count: 13
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  9. American Avocet Recurvirostra americana
    # Count: 5
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  10. Long-billed Curlew Numenius americanus
    # Count: 1
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  11. Greater Yellowlegs Tringa melanoleuca
    # Count: 2
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  12. Western Gull Larus occidentalis
    # Count: 1
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  13. Black Skimmer Rynchops niger
    # Count: 2
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  14. Least Tern Sternula antillarum
    # Count: 3
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  15. Forster's Tern Sterna forsteri
    # Count: 5
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  16. Double-crested Cormorant Nannopterum auritum
    # Count: 1
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  17. American White Pelican Pelecanus erythrorhynchos
    # Count: 120
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  18. Snowy Egret Egretta thula
    # Count: 2
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  19. Turkey Vulture Cathartes aura
    # Count: 2
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  20. American Crow Corvus brachyrhynchos
    # Count: 2
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  21. Tree Swallow Tachycineta bicolor
    # Count: 1
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  22. Barn Swallow Hirundo rustica
    # Count: 5
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  23. Cliff Swallow Petrochelidon pyrrhonota
    # Count: 1
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  24. Marsh Wren Cistothorus palustris
    # Count: 1
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  25. House Sparrow Passer domesticus
    # Count: 1
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  26. House Finch Haemorhous mexicanus
    # Count: 2
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  27. Song Sparrow Melospiza melodia
    # Count: 1
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  28. California Towhee Melozone crissalis
    # Count: 2
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  29. Red-winged Blackbird Agelaius phoeniceus
    # Count: 101
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  30. Brewer's Blackbird Euphagus cyanocephalus
    # Count: 1
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  31. California Gull Larus californicus
    # Count: 2
    Date:
    Observer: Cristian Orellana
    Location: Hayward Regional Shoreline--Cogswell Marsh
  32. Caspian Tern Hydroprogne caspia
    # Count: 4
    Date:
    Observer: Cristian Orellana
    Location: Hayward Regional Shoreline--Cogswell Marsh
  33. Killdeer Charadrius vociferus
    # Count: 1
    Date:
    Observer: Cristian Orellana
    Location: Hayward Regional Shoreline--Cogswell Marsh
  34. White-tailed Kite Elanus leucurus
    # Count: 1
    Date:
    Observer: Cristian Orellana
    Location: Hayward Regional Shoreline--Cogswell Marsh
  35. Northern Harrier Circus hudsonius
    # Count: 1
    Date:
    Observer: Cristian Orellana
    Location: Hayward Regional Shoreline--Cogswell Marsh
  36. Grasshopper Sparrow Ammodramus savannarum
    # Count: 1
    Date:
    Observer: Cristian Orellana
    Location: Hayward Regional Shoreline--Cogswell Marsh
  37. Savannah Sparrow Passerculus sandwichensis
    # Count: 5
    Date:
    Observer: Cristian Orellana
    Location: Hayward Regional Shoreline--Cogswell Marsh
  38. Eurasian Collared-Dove Streptopelia decaocto
    # Count: 3
    Date:
    Observer: Kelcie Wong
    Location: Hayward Regional Shoreline--Cogswell Marsh
  39. White-throated Swift Aeronautes saxatalis
    # Count: X
    Date:
    Observer: Kelcie Wong
    Location: Hayward Regional Shoreline--Cogswell Marsh
  40. Marbled Godwit Limosa fedoa
    # Count: 5
    Date:
    Observer: Kelcie Wong
    Location: Hayward Regional Shoreline--Cogswell Marsh
  41. Red-tailed Hawk Buteo jamaicensis
    # Count: 1
    Date:
    Observer: Kelcie Wong
    Location: Hayward Regional Shoreline--Cogswell Marsh
  42. Bushtit Psaltriparus minimus
    # Count: X
    Date:
    Observer: Kelcie Wong
    Location: Hayward Regional Shoreline--Cogswell Marsh
  43. Anna's Hummingbird Calypte anna
    # Count: 1
    Date:
    Observer: J H
    Location: Hayward Regional Shoreline--Cogswell Marsh
  44. Great Blue Heron Ardea herodias
    # Count: 1
    Date:
    Observer: J H
    Location: Hayward Regional Shoreline--Cogswell Marsh
  45. Common Raven Corvus corax
    # Count: 1
    Date:
    Observer: J H
    Location: Hayward Regional Shoreline--Cogswell Marsh
  46. Bewick's Wren Thryomanes bewickii
    # Count: 2
    Date:
    Observer: J H
    Location: Hayward Regional Shoreline--Cogswell Marsh
  47. Brown-headed Cowbird Molothrus ater
    # Count: 1
    Date:
    Observer: J H
    Location: Hayward Regional Shoreline--Cogswell Marsh
  48. Lesser Scaup Aythya affinis
    # Count: 1
    Date:
    Observer: Daniel Pankey
    Location: Hayward Regional Shoreline--Cogswell Marsh
  49. Greater Scaup Aythya marila
    # Count: 1
    Date:
    Observer: Kim L
    Location: Hayward Regional Shoreline--Cogswell Marsh
  50. Whimbrel Numenius phaeopus
    # Count: 3
    Date:
    Observer: Kim L
    Location: Hayward Regional Shoreline--Cogswell Marsh
  51. Brown Pelican Pelecanus occidentalis
    # Count: 1
    Date:
    Observer: Kim L
    Location: Hayward Regional Shoreline--Cogswell Marsh
  52. Black-crowned Night Heron Nycticorax nycticorax
    # Count: 1
    Date:
    Observer: Kim L
    Location: Hayward Regional Shoreline--Cogswell Marsh
  53. European Starling Sturnus vulgaris
    # Count: 1
    Date:
    Observer: Kim L
    Location: Hayward Regional Shoreline--Cogswell Marsh
  54. Dark-eyed Junco Junco hyemalis
    # Count: 1
    Date:
    Observer: Kim L
    Location: Hayward Regional Shoreline--Cogswell Marsh
  55. Willet Tringa semipalmata
    # Count: 1
    Date:
    Observer: Xiang Gao
    Location: Hayward Regional Shoreline--Cogswell Marsh
  56. Great Egret Ardea alba
    # Count: 1
    Date:
    Observer: Xiang Gao
    Location: Hayward Regional Shoreline--Cogswell Marsh
  57. Clark's Grebe Aechmophorus clarkii
    # Count: 3
    Date:
    Observer: Daniel Pankey
    Location: Hayward Regional Shoreline--Cogswell Marsh
  58. Northern Shoveler Spatula clypeata
    # Count: 16
    Date:
    Observer: L Eidemiller
    Location: Hayward Regional Shoreline--Cogswell Marsh
  59. American Wigeon Mareca americana
    # Count: 60
    Date:
    Observer: L Eidemiller
    Location: Hayward Regional Shoreline--Cogswell Marsh
  60. Bufflehead Bucephala albeola
    # Count: 3
    Date:
    Observer: L Eidemiller
    Location: Hayward Regional Shoreline--Cogswell Marsh
  61. Western Grebe Aechmophorus occidentalis
    # Count: 1
    Date:
    Observer: L Eidemiller
    Location: Hayward Regional Shoreline--Cogswell Marsh
  62. American Coot Fulica americana
    # Count: 20
    Date:
    Observer: L Eidemiller
    Location: Hayward Regional Shoreline--Cogswell Marsh
  63. Least Sandpiper Calidris minutilla
    # Count: X
    Date:
    Observer: L Eidemiller
    Location: Hayward Regional Shoreline--Cogswell Marsh
  64. Western Sandpiper Calidris mauri
    # Count: X
    Date:
    Observer: L Eidemiller
    Location: Hayward Regional Shoreline--Cogswell Marsh
  65. Ring-billed Gull Larus delawarensis
    # Count: 1
    Date:
    Observer: L Eidemiller
    Location: Hayward Regional Shoreline--Cogswell Marsh
  66. White-crowned Sparrow Zonotrichia leucophrys
    # Count: 1
    Date:
    Observer: L Eidemiller
    Location: Hayward Regional Shoreline--Cogswell Marsh
  67. Western Meadowlark Sturnella neglecta
    # Count: 15
    Date:
    Observer: L Eidemiller
    Location: Hayward Regional Shoreline--Cogswell Marsh
  68. Cackling Goose Branta hutchinsii
    # Count: 52
    Date:
    Observer: Justin Roderman
    Location: Hayward Regional Shoreline--Cogswell Marsh
  69. Black Oystercatcher Haematopus bachmani
    # Count: 1
    Date:
    Observer: Justin Roderman
    Location: Hayward Regional Shoreline--Cogswell Marsh
  70. Fox Sparrow Passerella iliaca
    # Count: 8
    Date:
    Observer: Justin Roderman
    Location: Hayward Regional Shoreline--Cogswell Marsh
  71. Yellow-rumped Warbler Setophaga coronata
    # Count: 6
    Date:
    Observer: Justin Roderman
    Location: Hayward Regional Shoreline--Cogswell Marsh
  72. Townsend's Warbler Setophaga townsendi
    # Count: 1
    Date:
    Observer: Justin Roderman
    Location: Hayward Regional Shoreline--Cogswell Marsh
  73. Green-winged Teal Anas crecca
    # Count: X
    Date:
    Observer: Tobias Rohmer
    Location: Hayward Regional Shoreline--Cogswell Marsh
  74. Ridgway's Rail Rallus obsoletus
    # Count: X
    Date:
    Observer: Tobias Rohmer
    Location: Hayward Regional Shoreline--Cogswell Marsh
  75. Black Turnstone Arenaria melanocephala
    # Count: 1
    Date:
    Observer: Tobias Rohmer
    Location: Hayward Regional Shoreline--Cogswell Marsh
  76. Merlin Falco columbarius
    # Count: 1
    Date:
    Observer: Tobias Rohmer
    Location: Hayward Regional Shoreline--Cogswell Marsh
  77. Common Yellowthroat Geothlypis trichas
    # Count: 4
    Date:
    Observer: Tobias Rohmer
    Location: Hayward Regional Shoreline--Cogswell Marsh
  78. Bonaparte's Gull Chroicocephalus philadelphia
    # Count: 7
    Date:
    Observer: Jaedon Tembrevilla
    Location: Hayward Regional Shoreline--Cogswell Marsh
  79. American Pipit Anthus rubescens
    # Count: 2
    Date:
    Observer: Jaedon Tembrevilla
    Location: Hayward Regional Shoreline--Cogswell Marsh
  80. Lincoln's Sparrow Melospiza lincolnii
    # Count: 1
    Date:
    Observer: Jaedon Tembrevilla
    Location: Hayward Regional Shoreline--Cogswell Marsh
  81. Mourning Dove Zenaida macroura
    # Count: 4
    Date:
    Observer: James Watts, Jr
    Location: Hayward Regional Shoreline--Cogswell Marsh
  82. Red-necked Phalarope Phalaropus lobatus
    # Count: 200
    Date:
    Observer: James Watts, Jr
    Location: Hayward Regional Shoreline--Cogswell Marsh
  83. Oak Titmouse Baeolophus inornatus
    # Count: 1
    Date:
    Observer: James Watts, Jr
    Location: Hayward Regional Shoreline--Cogswell Marsh
  84. Cinnamon Teal Spatula cyanoptera
    # Count: 1
    Date:
    Observer: James Watts, Jr
    Location: Hayward Regional Shoreline--Cogswell Marsh
  85. Western Flycatcher Empidonax difficilis
    # Count: 1
    Date:
    Observer: James Watts, Jr
    Location: Hayward Regional Shoreline--Cogswell Marsh
  86. Black Phoebe Sayornis nigricans
    # Count: 1
    Date:
    Observer: James Watts, Jr
    Location: Hayward Regional Shoreline--Cogswell Marsh
  87. Black-bellied Plover Pluvialis squatarola
    # Count: 60
    Date:
    Observer: Jim Chiropolos
    Location: Hayward Regional Shoreline--Cogswell Marsh
  88. Lesser Goldfinch Spinus psaltria
    # Count: 2
    Date:
    Observer: Jim Chiropolos
    Location: Hayward Regional Shoreline--Cogswell Marsh
  89. Semipalmated Plover Charadrius semipalmatus
    # Count: 8
    Date:
    Observer: Tom Baxter
    Location: Hayward Regional Shoreline--Cogswell Marsh
  90. Yellow Warbler Setophaga petechia
    # Count: 1
    Date:
    Observer: Tom Baxter
    Location: Hayward Regional Shoreline--Cogswell Marsh
  91. Ruddy Turnstone Arenaria interpres
    # Count: 1
    Date:
    Observer: Eric VerSteeg
    Location: Hayward Regional Shoreline--Cogswell Marsh
  92. Northern Pintail Anas acuta
    # Count: 28
    Date:
    Observer: Anonymous eBirder
    Location: Hayward Regional Shoreline--Cogswell Marsh
  93. Canvasback Aythya valisineria
    # Count: 2
    Date:
    Observer: Anonymous eBirder
    Location: Hayward Regional Shoreline--Cogswell Marsh
  94. Sanderling Calidris alba
    # Count: 3
    Date:
    Observer: Anonymous eBirder
    Location: Hayward Regional Shoreline--Cogswell Marsh
  95. Golden-crowned Sparrow Zonotrichia atricapilla
    # Count: 2
    Date:
    Observer: Anonymous eBirder
    Location: Hayward Regional Shoreline--Cogswell Marsh
  96. Wilson's Snipe Gallinago delicata
    # Count: 1
    Date:
    Observer: Stephen T Bird
    Location: Hayward Regional Shoreline--Cogswell Marsh
  97. Herring Gull Larus argentatus
    # Count: 1
    Date:
    Observer: Stephen T Bird
    Location: Hayward Regional Shoreline--Cogswell Marsh
  98. Common Goldeneye Bucephala clangula
    # Count: 2
    Date:
    Observer: James Watts, Jr
    Location: Hayward Regional Shoreline--Cogswell Marsh
  99. Horned Grebe Podiceps auritus
    # Count: 2
    Date:
    Observer: James Watts, Jr
    Location: Hayward Regional Shoreline--Cogswell Marsh
  100. Say's Phoebe Sayornis saya
    # Count: 1
    Date:
    Observer: James Watts, Jr
    Location: Hayward Regional Shoreline--Cogswell Marsh
  101. Osprey Pandion haliaetus
    # Count: 1
    Date:
    Observer: Chris Walters
    Location: Hayward Regional Shoreline--Cogswell Marsh
  102. Burrowing Owl Athene cunicularia
    # Count: 1
    Date:
    Observer: Chris Walters
    Location: Hayward Regional Shoreline--Cogswell Marsh
  103. Dunlin Calidris alpina
    # Count: 2000
    Date:
    Observer: H Polley
    Location: Hayward Regional Shoreline--Cogswell Marsh
  104. American Robin Turdus migratorius
    # Count: 1
    Date:
    Observer: H Polley
    Location: Hayward Regional Shoreline--Cogswell Marsh
  105. American Goldfinch Spinus tristis
    # Count: 1
    Date:
    Observer: H Polley
    Location: Hayward Regional Shoreline--Cogswell Marsh
  106. Short-billed Dowitcher Limnodromus griseus
    # Count: 4
    Date:
    Observer: Jim Chiropolos
    Location: Hayward Regional Shoreline--Cogswell Marsh
  107. Common Murre Uria aalge
    # Count: 1
    Date:
    Observer: Jim Chiropolos
    Location: Hayward Regional Shoreline--Cogswell Marsh
  108. Redhead Aythya americana
    # Count: 2
    Date:
    Observer: Eric Cameron
    Location: Hayward Regional Shoreline--Cogswell Marsh
  109. Snowy Plover Anarhynchus nivosus
    # Count: 1
    Date:
    Observer: Kim Dolan
    Location: Hayward Regional Shoreline--Cogswell Marsh
  110. Red Knot Calidris canutus
    # Count: 1
    Date:
    Observer: Kim Dolan
    Location: Hayward Regional Shoreline--Cogswell Marsh
  111. Cedar Waxwing Bombycilla cedrorum
    # Count: 7
    Date:
    Observer: Kshama Kheny
    Location: Hayward Regional Shoreline--Cogswell Marsh
  112. Northern Mockingbird Mimus polyglottos
    # Count: 2
    Date:
    Observer: Dennis Hazekamp
    Location: Hayward Regional Shoreline--Cogswell Marsh
  113. Glaucous-winged Gull Larus glaucescens
    # Count: 1
    Date:
    Observer: Trevor Kienzle
    Location: Hayward Regional Shoreline--Cogswell Marsh
  114. Snow Goose Anser caerulescens
    # Count: 6
    Date:
    Observer: Katerina Blinova
    Location: Hayward Regional Shoreline--Cogswell Marsh
  115. Greater White-fronted Goose Anser albifrons
    # Count: 45
    Date:
    Observer: Tobias Rohmer
    Location: Hayward Regional Shoreline--Cogswell Marsh
  116. Elegant Tern Thalasseus elegans
    # Count: 8
    Date:
    Observer: Tobias Rohmer
    Location: Hayward Regional Shoreline--Cogswell Marsh
  117. Peregrine Falcon Falco peregrinus
    # Count: 1
    Date:
    Observer: Tobias Rohmer
    Location: Hayward Regional Shoreline--Cogswell Marsh
  118. American Kestrel Falco sparverius
    # Count: 1
    Date:
    Observer: Roger Lambert
    Location: Hayward Regional Shoreline--Cogswell Marsh
  119. Cooper's Hawk Accipiter cooperii
    # Count: 1
    Date:
    Observer: Bob Brandriff
    Location: Hayward Regional Shoreline--Cogswell Marsh
  120. Downy Woodpecker Dryobates pubescens
    # Count: 1
    Date:
    Observer: Patrick Coughlin
    Location: Hayward Regional Shoreline--Cogswell Marsh
  121. Short-eared Owl Asio flammeus
    # Count: 1
    Date:
    Observer: Tobias Rohmer
    Location: Hayward Regional Shoreline--Cogswell Marsh
  122. Long-billed Dowitcher Limnodromus scolopaceus
    # Count: 1
    Date:
    Observer: Roger Lambert
    Location: Hayward Regional Shoreline--Cogswell Marsh
  123. Black Tern Chlidonias niger
    # Count: 1
    Date:
    Observer: Trevor Van Loon
    Location: Hayward Regional Shoreline--Cogswell Marsh
  124. Barn Owl Tyto alba
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Hayward Regional Shoreline--Cogswell Marsh
  125. Laughing Gull Leucophaeus atricilla
    # Count: 1
    Date:
    Observer: Marty Morrow
    Location: Hayward Regional Shoreline--Cogswell Marsh
  126. Virginia Rail Rallus limicola
    # Count: 3
    Date:
    Observer: Tobias Rohmer
    Location: Hayward Regional Shoreline--Cogswell Marsh
  127. Sora Porzana carolina
    # Count: 10
    Date:
    Observer: Tobias Rohmer
    Location: Hayward Regional Shoreline--Cogswell Marsh
  128. Nelson's Sparrow Ammospiza nelsoni
    # Count: 1
    Date:
    Observer: Tobias Rohmer
    Location: Hayward Regional Shoreline--Cogswell Marsh
  129. Lark Sparrow Chondestes grammacus
    # Count: 2
    Date:
    Observer: Vasy Pridatko
    Location: Hayward Regional Shoreline--Cogswell Marsh
  130. Orange-crowned Warbler Leiothlypis celata
    # Count: 1
    Date:
    Observer: Kir Pridatko
    Location: Hayward Regional Shoreline--Cogswell Marsh
  131. Allen's Hummingbird Selasphorus sasin
    # Count: 1
    Date:
    Observer: Deven Kammerichs-Berke
    Location: Hayward Regional Shoreline--Cogswell Marsh
  132. Pied-billed Grebe Podilymbus podiceps
    # Count: 1
    Date:
    Observer: William Clark
    Location: Hayward Regional Shoreline--Cogswell Marsh
  133. Spotted Sandpiper Actitis macularius
    # Count: 1
    Date:
    Observer: William Clark
    Location: Hayward Regional Shoreline--Cogswell Marsh
  134. Northern Flicker Colaptes auratus
    # Count: 1
    Date:
    Observer: William Clark
    Location: Hayward Regional Shoreline--Cogswell Marsh
  135. Ruby-crowned Kinglet Corthylio calendula
    # Count: 1
    Date:
    Observer: Diane Wong-Kone
    Location: Hayward Regional Shoreline--Cogswell Marsh
  136. Belted Kingfisher Megaceryle alcyon
    # Count: 1
    Date:
    Observer: Matthew Dodder
    Location: Hayward Regional Shoreline--Cogswell Marsh
  137. Purple Finch Haemorhous purpureus
    # Count: 2
    Date:
    Observer: Fred Werner
    Location: Hayward Regional Shoreline--Cogswell Marsh
  138. Blue-winged Teal Spatula discors
    # Count: 1
    Date:
    Observer: Gregory Taylor
    Location: Hayward Regional Shoreline--Cogswell Marsh
  139. Surf Scoter Melanitta perspicillata
    # Count: 14
    Date:
    Observer: Chris Wills
    Location: Hayward Regional Shoreline--Cogswell Marsh
  140. Common Gallinule Gallinula galeata
    # Count: 1
    Date:
    Observer: Chris Wills
    Location: Hayward Regional Shoreline--Cogswell Marsh
  141. Red-shouldered Hawk Buteo lineatus
    # Count: 1
    Date:
    Observer: Chris Wills
    Location: Hayward Regional Shoreline--Cogswell Marsh
  142. Loggerhead Shrike Lanius ludovicianus
    # Count: 1
    Date:
    Observer: Chris Wills
    Location: Hayward Regional Shoreline--Cogswell Marsh
  143. Hermit Thrush Catharus guttatus
    # Count: 2
    Date:
    Observer: Chris Wills
    Location: Hayward Regional Shoreline--Cogswell Marsh
  144. Wilson's Phalarope Phalaropus tricolor
    # Count: 11
    Date:
    Observer: Kyoko Takayama
    Location: Hayward Regional Shoreline--Cogswell Marsh
  145. Hooded Oriole Icterus cucullatus
    # Count: 1
    Date:
    Observer: Kyoko Takayama
    Location: Hayward Regional Shoreline--Cogswell Marsh
  146. Western Wood-Pewee Contopus sordidulus
    # Count: 1
    Date:
    Observer: Stephanie Floyd
    Location: Hayward Regional Shoreline--Cogswell Marsh
  147. Eurasian Wigeon Mareca penelope
    # Count: 1
    Date:
    Observer: Art Munson
    Location: Hayward Regional Shoreline--Cogswell Marsh
  148. Baird's Sandpiper Calidris bairdii
    # Count: 1
    Date:
    Observer: Richard Cimino
    Location: Hayward Regional Shoreline--Cogswell Marsh
  149. Horned Lark Eremophila alpestris
    # Count: X
    Date:
    Observer: Tobias Rohmer
    Location: Hayward Regional Shoreline--Cogswell Marsh
  150. Western Kingbird Tyrannus verticalis
    # Count: X
    Date:
    Observer: Tobias Rohmer
    Location: Hayward Regional Shoreline--Cogswell Marsh
  151. Violet-green Swallow Tachycineta thalassina
    # Count: X
    Date:
    Observer: Tobias Rohmer
    Location: Hayward Regional Shoreline--Cogswell Marsh
  152. Sharp-shinned Hawk Accipiter striatus
    # Count: X
    Date:
    Observer: Tobias Rohmer
    Location: Hayward Regional Shoreline--Cogswell Marsh
  153. Prairie Falcon Falco mexicanus
    # Count: X
    Date:
    Observer: Tobias Rohmer
    Location: Hayward Regional Shoreline--Cogswell Marsh
  154. California Scrub-Jay Aphelocoma californica
    # Count: X
    Date:
    Observer: Tobias Rohmer
    Location: Hayward Regional Shoreline--Cogswell Marsh
  155. Wandering Tattler Tringa incana
    # Count: X
    Date:
    Observer: Tobias Rohmer
    Location: Hayward Regional Shoreline--Cogswell Marsh
  156. Wilson's Warbler Cardellina pusilla
    # Count: X
    Date:
    Observer: Tobias Rohmer
    Location: Hayward Regional Shoreline--Cogswell Marsh
  157. Rufous Hummingbird Selasphorus rufus
    # Count: X
    Date:
    Observer: Tobias Rohmer
    Location: Hayward Regional Shoreline--Cogswell Marsh
  158. Lazuli Bunting Passerina amoena
    # Count: X
    Date:
    Observer: Tobias Rohmer
    Location: Hayward Regional Shoreline--Cogswell Marsh
  159. Great-tailed Grackle Quiscalus mexicanus
    # Count: X
    Date:
    Observer: Tobias Rohmer
    Location: Hayward Regional Shoreline--Cogswell Marsh
  160. Varied Thrush Ixoreus naevius
    # Count: X
    Date:
    Observer: Tobias Rohmer
    Location: Hayward Regional Shoreline--Cogswell Marsh
  161. Pelagic Cormorant Urile pelagicus
    # Count: X
    Date:
    Observer: Christopher Hollister
    Location: Hayward Regional Shoreline--Cogswell Marsh
  162. Green Heron Butorides virescens
    # Count: 1
    Date:
    Observer: Christopher Hollister
    Location: Hayward Regional Shoreline--Cogswell Marsh
  163. Northern Rough-winged Swallow Stelgidopteryx serripennis
    # Count: 1
    Date:
    Observer: Christopher Hollister
    Location: Hayward Regional Shoreline--Cogswell Marsh

Exotic: Escapee (1)

  1. Chilean Flamingo Phoenicopterus chilensis
    # Count: X
    Date:
    Observer: Tobias Rohmer
    Location: Hayward Regional Shoreline--Cogswell Marsh

Additional Taxa (22)

  1. duck sp. Anatidae (duck sp.)
    # Count: 4
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  2. gull sp. Larinae sp.
    # Count: 10
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  3. tern sp. Sterninae sp.
    # Count: 20
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  4. cormorant sp. Phalacrocoracidae sp.
    # Count: 1
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  5. swallow sp. Hirundinidae sp.
    # Count: 50
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  6. new world sparrow sp. Passerellidae sp.
    # Count: 2
    Date:
    Observer: BreeAnn Crofts
    Location: Hayward Regional Shoreline--Cogswell Marsh
  7. shorebird sp. Charadriiformes sp.
    # Count: 20
    Date:
    Observer: J H
    Location: Hayward Regional Shoreline--Cogswell Marsh
  8. Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceus
    # Count: 30
    Date:
    Observer: Chris Dong
    Location: Hayward Regional Shoreline--Cogswell Marsh
  9. Greater/Lesser Scaup Aythya marila/affinis
    # Count: 200
    Date:
    Observer: Stephen T Bird
    Location: Hayward Regional Shoreline--Cogswell Marsh
  10. plover sp. Charadriidae sp.
    # Count: 1
    Date:
    Observer: Peter mcclelland
    Location: Hayward Regional Shoreline--Cogswell Marsh
  11. Larus sp. Larus sp.
    # Count: 5
    Date:
    Observer: Peter mcclelland
    Location: Hayward Regional Shoreline--Cogswell Marsh
  12. peep sp. Calidris sp. (peep sp.)
    # Count: 100
    Date:
    Observer: H Polley
    Location: Hayward Regional Shoreline--Cogswell Marsh
  13. hawk sp. Accipitridae sp. (hawk sp.)
    # Count: 1
    Date:
    Observer: B T
    Location: Hayward Regional Shoreline--Cogswell Marsh
  14. House/Purple Finch Haemorhous mexicanus/purpureus
    # Count: X
    Date:
    Observer: Denny Yang
    Location: Hayward Regional Shoreline--Cogswell Marsh
  15. Lesser/Greater Yellowlegs Tringa flavipes/melanoleuca
    # Count: X
    Date:
    Observer: Sally W
    Location: Hayward Regional Shoreline--Cogswell Marsh
  16. hummingbird sp. Trochilidae sp.
    # Count: 2
    Date:
    Observer: Roger Lambert
    Location: Hayward Regional Shoreline--Cogswell Marsh
  17. Common/Barrow's Goldeneye Bucephala clangula/islandica
    # Count: 1
    Date:
    Observer: Diane Wong-Kone
    Location: Hayward Regional Shoreline--Cogswell Marsh
  18. falcon sp. Falco sp.
    # Count: 1
    Date:
    Observer: Diane Wong-Kone
    Location: Hayward Regional Shoreline--Cogswell Marsh
  19. Accipiter sp. Accipiter sp.
    # Count: 1
    Date:
    Observer: Gregory Taylor
    Location: Hayward Regional Shoreline--Cogswell Marsh
  20. Horned/Eared Grebe Podiceps auritus/nigricollis
    # Count: 2
    Date:
    Observer: Fred Werner
    Location: Hayward Regional Shoreline--Cogswell Marsh
  21. Western/Clark's Grebe Aechmophorus occidentalis/clarkii
    # Count: 8
    Date:
    Observer: Chris Wills
    Location: Hayward Regional Shoreline--Cogswell Marsh
  22. blackbird sp. Icteridae sp.
    # Count: 4
    Date:
    Observer: Chris Wills
    Location: Hayward Regional Shoreline--Cogswell Marsh