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2010 Results: Castro Valley, California

This town report includes all data submitted to the town and to all postal codes associated with the town.

Other years: 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012


Species [taxonomic]
[alphabetic]
Number of Birds   Number of Checklists
Reporting the Species
Canada Goose 65       1      
Gadwall 2       1      
American Wigeon 4       1      
Mallard 4       2      
Bufflehead 3       1      
Ruddy Duck 29       2      
California Quail 1       1      
Wild Turkey 1       1      
Pied-billed Grebe 1       1      
Eared Grebe 3       1      
Western Grebe 3       1      
Double-crested Cormorant 1       1      
Turkey Vulture 30       2      
White-tailed Kite 1       1      
Northern Harrier 1       1      
Red-shouldered Hawk 3       2      
Red-tailed Hawk 4       2      
Golden Eagle 1       1      
American Coot 7       2      
Killdeer 3       1      
Rock Pigeon 8       1      
Mourning Dove 7       3      
White-throated Swift 9       1      
Anna's Hummingbird 7       4      
Red-breasted Sapsucker 1       1      
Nuttall's Woodpecker 7       7      
Hairy Woodpecker 1       1      
Northern Flicker 2       2      
Black Phoebe 3       3      
Hutton's Vireo 1       1      
Steller's Jay 3       2      
Western Scrub-Jay 14       7      
American Crow 5       2      
Common Raven 4       3      
Chestnut-backed Chickadee 16       8      
Oak Titmouse 4       4      
Bushtit 1       1      
Red-breasted Nuthatch 3       2      
Bewick's Wren 2       2      
Golden-crowned Kinglet 1       1      
Ruby-crowned Kinglet 2       2      
Wrentit 5       2      
Western Bluebird 3       2      
Hermit Thrush 1       1      
American Robin 44       6      
Northern Mockingbird 1       1      
California Thrasher 2       1      
Cedar Waxwing 20       1      
Yellow-rumped Warbler 4       3      
Townsend's Warbler 1       1      
Spotted Towhee 6       4      
California Towhee 9       7      
Fox Sparrow 4       3      
Song Sparrow 4       4      
White-crowned Sparrow 1       1      
Golden-crowned Sparrow 25       8      
Dark-eyed Junco 23       7      
Western Meadowlark 3       1      
Purple Finch 13       5      
House Finch 25       6      
Lesser Goldfinch 38       6      
American Goldfinch 1       1      
Total 501             

A total of 62 species were reported.

See a summary for California.

This report was updated 15-Jan-2013 09:05 ET.