Menu

Change Region

Change Region

Del Valle Regional Park--Rocky Ridge Visitor Center

Directions Map

Explore...

Bird List

Updated ~8 seconds ago
146 All Years 116 This Year 2024 32 This Month Jun 2024
Last Observed First Observed High Count

Custom Time Period

Change Time Period

Sort by

  1. Species Name
    Count
    Date
    Observer
    Location

Native and Naturalized (146)

  1. Canada Goose Branta canadensis
    # Count: 100
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  2. Mallard Anas platyrhynchos
    # Count: 4
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  3. California Quail Callipepla californica
    # Count: 1
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  4. Wild Turkey Meleagris gallopavo
    # Count: 1
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  5. Western Grebe Aechmophorus occidentalis
    # Count: 15
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  6. Mourning Dove Zenaida macroura
    # Count: 1
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  7. Anna's Hummingbird Calypte anna
    # Count: 1
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  8. American Coot Fulica americana
    # Count: 1
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  9. Green Heron Butorides virescens
    # Count: 1
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  10. Great Blue Heron Ardea herodias
    # Count: 2
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  11. Turkey Vulture Cathartes aura
    # Count: 10
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  12. Red-tailed Hawk Buteo jamaicensis
    # Count: 1
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  13. Acorn Woodpecker Melanerpes formicivorus
    # Count: 6
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  14. Nuttall's Woodpecker Dryobates nuttallii
    # Count: 1
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  15. Northern Flicker Colaptes auratus
    # Count: 1
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  16. American Kestrel Falco sparverius
    # Count: 2
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  17. Black Phoebe Sayornis nigricans
    # Count: 3
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  18. Ash-throated Flycatcher Myiarchus cinerascens
    # Count: 2
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  19. California Scrub-Jay Aphelocoma californica
    # Count: 2
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  20. American Crow Corvus brachyrhynchos
    # Count: 6
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  21. Oak Titmouse Baeolophus inornatus
    # Count: 4
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  22. Northern Rough-winged Swallow Stelgidopteryx serripennis
    # Count: 3
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  23. Cliff Swallow Petrochelidon pyrrhonota
    # Count: 50
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  24. White-breasted Nuthatch Sitta carolinensis
    # Count: 4
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  25. European Starling Sturnus vulgaris
    # Count: 2
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  26. Western Bluebird Sialia mexicana
    # Count: 2
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  27. American Robin Turdus migratorius
    # Count: 5
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  28. House Finch Haemorhous mexicanus
    # Count: 2
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  29. Dark-eyed Junco Junco hyemalis
    # Count: 10
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  30. California Towhee Melozone crissalis
    # Count: 3
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  31. Great-tailed Grackle Quiscalus mexicanus
    # Count: 2
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  32. Orange-crowned Warbler Leiothlypis celata
    # Count: 1
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  33. Common Raven Corvus corax
    # Count: 1
    Date:
    Observer: David Assmann
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  34. Violet-green Swallow Tachycineta thalassina
    # Count: 1
    Date:
    Observer: David Assmann
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  35. Bushtit Psaltriparus minimus
    # Count: 2
    Date:
    Observer: David Assmann
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  36. Wrentit Chamaea fasciata
    # Count: 1
    Date:
    Observer: David Assmann
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  37. Bewick's Wren Thryomanes bewickii
    # Count: 2
    Date:
    Observer: David Assmann
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  38. Purple Finch Haemorhous purpureus
    # Count: 1
    Date:
    Observer: David Assmann
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  39. American Goldfinch Spinus tristis
    # Count: 1
    Date:
    Observer: David Assmann
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  40. Song Sparrow Melospiza melodia
    # Count: 2
    Date:
    Observer: David Assmann
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  41. Spotted Towhee Pipilo maculatus
    # Count: 1
    Date:
    Observer: David Assmann
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  42. Hairy Woodpecker Dryobates villosus
    # Count: 1
    Date:
    Observer: Colin McGregor
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  43. Steller's Jay Cyanocitta stelleri
    # Count: 2
    Date:
    Observer: Colin McGregor
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  44. Tree Swallow Tachycineta bicolor
    # Count: 2
    Date:
    Observer: Colin McGregor
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  45. Blue-gray Gnatcatcher Polioptila caerulea
    # Count: 3
    Date:
    Observer: Colin McGregor
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  46. House Wren Troglodytes aedon
    # Count: 2
    Date:
    Observer: Colin McGregor
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  47. Lesser Goldfinch Spinus psaltria
    # Count: 3
    Date:
    Observer: Colin McGregor
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  48. Rufous-crowned Sparrow Aimophila ruficeps
    # Count: 1
    Date:
    Observer: Colin McGregor
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  49. White-tailed Kite Elanus leucurus
    # Count: 1
    Date:
    Observer: Colin McGregor
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  50. Cooper's Hawk Accipiter cooperii
    # Count: 1
    Date:
    Observer: Colin McGregor
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  51. Common Merganser Mergus merganser
    # Count: 1
    Date:
    Observer: Christina Tarr
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  52. Pied-billed Grebe Podilymbus podiceps
    # Count: 1
    Date:
    Observer: Christina Tarr
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  53. Killdeer Charadrius vociferus
    # Count: 1
    Date:
    Observer: Christina Tarr
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  54. Spotted Sandpiper Actitis macularius
    # Count: 1
    Date:
    Observer: Christina Tarr
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  55. Double-crested Cormorant Nannopterum auritum
    # Count: 2
    Date:
    Observer: Christina Tarr
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  56. Bald Eagle Haliaeetus leucocephalus
    # Count: 1
    Date:
    Observer: Christina Tarr
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  57. Brown-headed Cowbird Molothrus ater
    # Count: 1
    Date:
    Observer: Christina Tarr
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  58. Yellow Warbler Setophaga petechia
    # Count: 1
    Date:
    Observer: Christina Tarr
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  59. Wilson's Warbler Cardellina pusilla
    # Count: 1
    Date:
    Observer: Christina Tarr
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  60. Black-headed Grosbeak Pheucticus melanocephalus
    # Count: 1
    Date:
    Observer: Christina Tarr
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  61. Red-shouldered Hawk Buteo lineatus
    # Count: 1
    Date:
    Observer: David Mostardi
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  62. Eurasian Collared-Dove Streptopelia decaocto
    # Count: 1
    Date:
    Observer: Christina Tarr
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  63. Downy Woodpecker Dryobates pubescens
    # Count: 1
    Date:
    Observer: Christina Tarr
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  64. Warbling Vireo Vireo gilvus
    # Count: 1
    Date:
    Observer: Christina Tarr
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  65. Western Tanager Piranga ludoviciana
    # Count: 1
    Date:
    Observer: Christina Tarr
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  66. Western Kingbird Tyrannus verticalis
    # Count: 2
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  67. Yellow-billed Magpie Pica nuttalli
    # Count: 3
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  68. Yellow-breasted Chat Icteria virens
    # Count: 1
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  69. Clark's Grebe Aechmophorus clarkii
    # Count: 1
    Date:
    Observer: Dallas Levey
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  70. White-throated Swift Aeronautes saxatalis
    # Count: 2
    Date:
    Observer: Dallas Levey
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  71. Common Gallinule Gallinula galeata
    # Count: 2
    Date:
    Observer: Dallas Levey
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  72. Western Wood-Pewee Contopus sordidulus
    # Count: 1
    Date:
    Observer: Dallas Levey
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  73. Swainson's Thrush Catharus ustulatus
    # Count: 1
    Date:
    Observer: Dallas Levey
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  74. Wood Duck Aix sponsa
    # Count: 5
    Date:
    Observer: Ed Yong
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  75. Northern Mockingbird Mimus polyglottos
    # Count: 1
    Date:
    Observer: Ed Yong
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  76. Red-winged Blackbird Agelaius phoeniceus
    # Count: 1
    Date:
    Observer: Ed Yong
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  77. Vaux's Swift Chaetura vauxi
    # Count: 2
    Date:
    Observer: Bradford Graham
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  78. Peregrine Falcon Falco peregrinus
    # Count: 1
    Date:
    Observer: Bradford Graham
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  79. Hutton's Vireo Vireo huttoni
    # Count: 1
    Date:
    Observer: Bradford Graham
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  80. Western Flycatcher Empidonax difficilis
    # Count: 1
    Date:
    Observer: Aaron Maizlish
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  81. Belted Kingfisher Megaceryle alcyon
    # Count: 1
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  82. Phainopepla Phainopepla nitens
    # Count: 1
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  83. Cassin's Vireo Vireo cassinii
    # Count: 1
    Date:
    Observer: Jim Sweeney
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  84. Cackling Goose Branta hutchinsii
    # Count: 1
    Date:
    Observer: Justin Cottrell
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  85. Rock Pigeon Columba livia
    # Count: 2
    Date:
    Observer: Justin Cottrell
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  86. Band-tailed Pigeon Patagioenas fasciata
    # Count: 3
    Date:
    Observer: Justin Cottrell
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  87. Common Yellowthroat Geothlypis trichas
    # Count: 1
    Date:
    Observer: Justin Cottrell
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  88. Yellow-rumped Warbler Setophaga coronata
    # Count: 1
    Date:
    Observer: Justin Cottrell
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  89. Sharp-shinned Hawk Accipiter striatus
    # Count: 1
    Date:
    Observer: Ed Yong
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  90. Ruby-crowned Kinglet Corthylio calendula
    # Count: 2
    Date:
    Observer: Ed Yong
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  91. Red-breasted Nuthatch Sitta canadensis
    # Count: 2
    Date:
    Observer: Ed Yong
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  92. California Thrasher Toxostoma redivivum
    # Count: 2
    Date:
    Observer: Ed Yong
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  93. White-crowned Sparrow Zonotrichia leucophrys
    # Count: 3
    Date:
    Observer: Ed Yong
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  94. Golden-crowned Sparrow Zonotrichia atricapilla
    # Count: 13
    Date:
    Observer: Ed Yong
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  95. Nashville Warbler Leiothlypis ruficapilla
    # Count: 2
    Date:
    Observer: Ed Yong
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  96. Townsend's Warbler Setophaga townsendi
    # Count: 1
    Date:
    Observer: Ed Yong
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  97. Common Goldeneye Bucephala clangula
    # Count: 2
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  98. Greater Yellowlegs Tringa melanoleuca
    # Count: 1
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  99. Chestnut-backed Chickadee Poecile rufescens
    # Count: 4
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  100. Greater Scaup Aythya marila
    # Count: 5
    Date:
    Observer: Grace Li
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  101. Ruddy Duck Oxyura jamaicensis
    # Count: 25
    Date:
    Observer: Grace Li
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  102. American White Pelican Pelecanus erythrorhynchos
    # Count: 1
    Date:
    Observer: Grace Li
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  103. Barn Owl Tyto alba
    # Count: 5
    Date:
    Observer: Grace Li
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  104. Say's Phoebe Sayornis saya
    # Count: 4
    Date:
    Observer: Grace Li
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  105. Hermit Thrush Catharus guttatus
    # Count: X
    Date:
    Observer: P Oakman
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  106. White-throated Sparrow Zonotrichia albicollis
    # Count: 1
    Date:
    Observer: Gerry Laird
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  107. Bufflehead Bucephala albeola
    # Count: 1
    Date:
    Observer: Gerry Laird
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  108. Lesser Scaup Aythya affinis
    # Count: 1
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  109. Gadwall Mareca strepera
    # Count: 1
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  110. Red-breasted Sapsucker Sphyrapicus ruber
    # Count: 1
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  111. Ring-necked Duck Aythya collaris
    # Count: 20
    Date:
    Observer: Lori Pohlmann
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  112. Ring-billed Gull Larus delawarensis
    # Count: 1
    Date:
    Observer: Lori Pohlmann
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  113. Snowy Egret Egretta thula
    # Count: 1
    Date:
    Observer: Lori Pohlmann
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  114. Varied Thrush Ixoreus naevius
    # Count: 1
    Date:
    Observer: Lori Pohlmann
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  115. Northern Shoveler Spatula clypeata
    # Count: 10
    Date:
    Observer: Gerry Laird
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  116. Least Sandpiper Calidris minutilla
    # Count: 1
    Date:
    Observer: Gerry Laird
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  117. Great Egret Ardea alba
    # Count: 1
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  118. Hooded Merganser Lophodytes cucullatus
    # Count: 1
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  119. Eared Grebe Podiceps nigricollis
    # Count: 1
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  120. Wilson's Snipe Gallinago delicata
    # Count: 2
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  121. Brewer's Blackbird Euphagus cyanocephalus
    # Count: 9
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  122. Barn Swallow Hirundo rustica
    # Count: 5
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  123. Western Meadowlark Sturnella neglecta
    # Count: 2
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  124. Pygmy Nuthatch Sitta pygmaea
    # Count: 1
    Date:
    Observer: Carla Delucchi
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  125. Osprey Pandion haliaetus
    # Count: 1
    Date:
    Observer: B T
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  126. Golden Eagle Aquila chrysaetos
    # Count: 1
    Date:
    Observer: B T
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  127. American Wigeon Mareca americana
    # Count: 6
    Date:
    Observer: Henry Koertzen
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  128. Common Poorwill Phalaenoptilus nuttallii
    # Count: 2
    Date:
    Observer: B T
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  129. Bullock's Oriole Icterus bullockii
    # Count: 3
    Date:
    Observer: Susan Greef
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  130. Brown Creeper Certhia americana
    # Count: 1
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  131. Lark Sparrow Chondestes grammacus
    # Count: 2
    Date:
    Observer: Carla Din
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  132. Horned Lark Eremophila alpestris
    # Count: 2
    Date:
    Observer: Gerry McChesney
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  133. California Gull Larus californicus
    # Count: 2
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  134. Northern Harrier Circus hudsonius
    # Count: 1
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  135. Savannah Sparrow Passerculus sandwichensis
    # Count: 4
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  136. Golden-crowned Kinglet Regulus satrapa
    # Count: 1
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  137. Cedar Waxwing Bombycilla cedrorum
    # Count: 12
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  138. American Pipit Anthus rubescens
    # Count: 2
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  139. Greater White-fronted Goose Anser albifrons
    # Count: 1
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  140. Loggerhead Shrike Lanius ludovicianus
    # Count: 1
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  141. Allen's Hummingbird Selasphorus sasin
    # Count: 1
    Date:
    Observer: Viviana Wolinsky
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  142. Bell's Sparrow Artemisiospiza belli
    # Count: 1
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  143. Lincoln's Sparrow Melospiza lincolnii
    # Count: 2
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  144. Greater Roadrunner Geococcyx californianus
    # Count: 1
    Date:
    Observer: Karina Garcia
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  145. Forster's Tern Sterna forsteri
    # Count: 4
    Date:
    Observer: Eyal Shochat
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  146. Pine Siskin Spinus pinus
    # Count: 8
    Date:
    Observer: Eyal Shochat
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center

Additional Taxa (13)

  1. Western/Clark's Grebe Aechmophorus occidentalis/clarkii
    # Count: 20
    Date:
    Observer: Christina Tarr
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  2. duck sp. Anatidae (duck sp.)
    # Count: 1
    Date:
    Observer: Gerry Laird
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  3. swallow sp. Hirundinidae sp.
    # Count: 40
    Date:
    Observer: Gerry Laird
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  4. Greater/Lesser Scaup Aythya marila/affinis
    # Count: 2
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  5. woodpecker sp. Picidae sp.
    # Count: 1
    Date:
    Observer: Gerry Laird
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  6. hummingbird sp. Trochilidae sp.
    # Count: 1
    Date:
    Observer: B T
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  7. Tree/Violet-green Swallow Tachycineta bicolor/thalassina
    # Count: 8
    Date:
    Observer: B T
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  8. blackbird sp. Icteridae sp.
    # Count: 4
    Date:
    Observer: B T
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  9. Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperii
    # Count: X
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  10. gull sp. Larinae sp.
    # Count: 2
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  11. Domestic goose sp. (Domestic type) Anser sp. (Domestic type)
    # Count: 2
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  12. peep sp. Calidris sp. (peep sp.)
    # Count: 20
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center
  13. Larus sp. Larus sp.
    # Count: 3
    Date:
    Observer: David Yeamans
    Location: Del Valle Regional Park--Rocky Ridge Visitor Center