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2003 Results: Los Osos, 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
Brant 10,600       9      
Canada Goose 1       1      
Eurasian Wigeon 2       1      
American Wigeon 675       10      
Mallard 117       12      
Blue-winged Teal 2       1      
Cinnamon Teal 82       9      
Northern Shoveler 170       9      
Northern Pintail 404       8      
Green-winged Teal 235       6      
Redhead 4       1      
Greater Scaup 149       7      
Lesser Scaup 239       5      
Surf Scoter 506       6      
White-winged Scoter 5       2      
Bufflehead 100       8      
Red-breasted Merganser 5       2      
Ruddy Duck 194       8      
California Quail 128       8      
Red-throated Loon 3       1      
Pacific Loon 2       2      
Common Loon 3       1      
Pied-billed Grebe 4       2      
Horned Grebe 7       3      
Eared Grebe 5       2      
Western Grebe 233       2      
Clark's Grebe 6       2      
Brandt's Cormorant 45       2      
Double-crested Cormorant 290       14      
Pelagic Cormorant 97       4      
American White Pelican 128       4      
Brown Pelican 40       4      
Great Blue Heron 36       13      
Great Egret 97       15      
Snowy Egret 150       11      
Black-crowned Night-Heron 27       2      
Turkey Vulture 68       17      
White-tailed Kite 14       9      
Northern Harrier 6       5      
Sharp-shinned Hawk 4       4      
Cooper's Hawk 7       6      
Red-shouldered Hawk 15       10      
Red-tailed Hawk 31       19      
Ferruginous Hawk 1       1      
American Kestrel 15       10      
Merlin 2       2      
Peregrine Falcon 2       2      
Virginia Rail 1       1      
Sora 1       1      
American Coot 104       7      
Black-bellied Plover 49       3      
Semipalmated Plover 7       1      
Killdeer 54       7      
Black Oystercatcher 7       3      
Black-necked Stilt 1       1      
American Avocet 466       9      
Spotted Sandpiper 1       1      
Greater Yellowlegs 10       6      
Willet 2,640       10      
Lesser Yellowlegs 1       1      
Whimbrel 50       1      
Long-billed Curlew 1,314       10      
Marbled Godwit 1,752       13      
Ruddy Turnstone 1       1      
Black Turnstone 26       4      
Surfbird 11       2      
Sanderling 58       3      
Western Sandpiper 1,250       3      
Least Sandpiper 100       1      
Dunlin 1       1      
Short-billed Dowitcher 1       1      
Long-billed Dowitcher 27       2      
Bonaparte's Gull 7       3      
Heermann's Gull 21       3      
Mew Gull 8       1      
Ring-billed Gull 207       8      
Western Gull 300       17      
California Gull 7       3      
Herring Gull 19       2      
Glaucous-winged Gull 4       2      
Caspian Tern 54       10      
Forster's Tern 20       4      
Royal Tern 4       2      
Black Skimmer 7       4      
Rock Pigeon 57       5      
Eurasian Collared-Dove 8       2      
White-winged Dove 1       1      
Mourning Dove 141       25      
Barn Owl 1       1      
Great Horned Owl 5       4      
White-throated Swift 7       1      
Anna's Hummingbird 136       23      
Rufous Hummingbird 1       1      
Allen's Hummingbird 9       7      
Belted Kingfisher 6       6      
Acorn Woodpecker 4       1      
Red-breasted Sapsucker 1       1      
Nuttall's Woodpecker 4       3      
Downy Woodpecker 3       3      
Hairy Woodpecker 2       2      
Northern Flicker 10       4      
Black Phoebe 22       15      
Say's Phoebe 13       7      
Loggerhead Shrike 1       1      
Hutton's Vireo 4       2      
Steller's Jay 1       1      
Western Scrub-Jay 81       24      
American Crow 321       18      
Common Raven 3       1      
Tree Swallow 3       1      
Violet-green Swallow 9       2      
Chestnut-backed Chickadee 47       5      
Oak Titmouse 8       5      
Bushtit 172       17      
White-breasted Nuthatch 1       1      
Canyon Wren 1       1      
Bewick's Wren 49       22      
Marsh Wren 1       1      
Blue-gray Gnatcatcher 3       3      
Ruby-crowned Kinglet 31       9      
Wrentit 100       16      
Western Bluebird 35       3      
Hermit Thrush 6       4      
American Robin 28       4      
Northern Mockingbird 22       13      
California Thrasher 23       12      
European Starling 134       15      
American Pipit 3       1      
Cedar Waxwing 105       4      
Orange-crowned Warbler 1       1      
Common Yellowthroat 8       6      
Yellow-rumped Warbler 223       19      
Townsend's Warbler 3       3      
Spotted Towhee 37       14      
California Towhee 67       20      
Chipping Sparrow 1       1      
Savannah Sparrow 2       2      
Nelson's Sparrow 1       1      
Fox Sparrow 8       4      
Song Sparrow 82       16      
Lincoln's Sparrow 5       2      
White-crowned Sparrow 388       27      
Golden-crowned Sparrow 141       11      
Dark-eyed Junco 192       15      
Red-winged Blackbird 507       9      
Tricolored Blackbird 9       1      
Western Meadowlark 65       8      
Brewer's Blackbird 479       15      
Brown-headed Cowbird 2       1      
Purple Finch 15       3      
House Finch 76       9      
Pine Siskin 3       1      
Lesser Goldfinch 101       9      
Lawrence's Goldfinch 6       1      
American Goldfinch 181       13      
House Sparrow 28       4      
Total 27,801             

A total of 156 species were reported.

See a summary for California.

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