Species Jan-Mar Apr-Jun Jul-Sep Oct-Dec
LOONS
Red-throated Loon c c c c
Pacific Loon c c c c
Common Loon c c c c
GREBES
Pied-billed Grebe o o o
Red-necked Grebe c c u c
Horned Grebe u o o
Western Grebe c c c c
Clark's Grebe o o o
SHEARWATERS AND PETRELS
Northern Fulmar o u
Pink-footed Shearwater o o
Buller's Shearwater u
Sooty Shearwater c c c
Short-tailed Shearwater u
Manx Shearwater xx
Black-vented Shearwater x
PELICANS
Brown Pelican x c c c
CORMORANTS
Double-crested Cormorant u c c u
Brandt's Cormorant u c c u
Pelagic Cormorant u c c u
HERONS
Great Blue Heron u u u o
Great Egret x
Green Heron o
IBIS AND SPOONBILLS
White-faced Ibis x
DUCKS, GEESE AND SWANS
Tundra Swan o
Greater White-fronted Goose o
Canada Goose u u o o
Brant o c o o
Wood Duck o o
American Wigeon o o u
Gadwall x
Green-winged Teal o o o o
Mallard o u o u
Northern Pintail o o u u
Blue-winged Teal x
Northern Shoveler o o
Ring-necked Duck o
Greater Scaup u u o o
Long-tailed Duck xx
Black Scoter u u u u
Surf Scoter c c c c
White-winged Scoter c c c c
Common Goldeneye o
Bufflehead u u u
Hooded Merganser o
Red-breasted Merganser u u o u
NEW WORLD VULTURES
Turkey Vulture u o o
OSPREY
Osprey o o o
HAWKS, EAGLES and KITES
White-tailed Kite x
Bald Eagle u c o o
Northern Harrier o u o o
Sharp-shinned Hawk o o o
Cooper's Hawk o o
Red-tailed Hawk o u u o
FALCONS AND CARACARAS
American Kestrel o
Merlin o
Peregrine Falcon u o u
GROUSE AND PTARMIGAN
Ruffed Grouse o
RAILS, GALLINULES AND COOTS
Virginia Rail o
OYSTERCATCHERS
Black Oystercatcher o o
PLOVERS AND LAPWINGS
Pacific Golden-Plover o
Black-bellied Plover o u o
Semipalmated Plover o u o u
Killdeer o o
SANDPIPERS
Short-billed Dowitcher o
Long-billed Dowitcher x
Marbled Godwit x
Whimbrel c u o
Long-billed Curlew x
Greater Yellowlegs o o
Spotted Sandpiper x
Wandering Tattler x
Ruddy Turnstone x
Black Turnstone o o
Surfbird x
Red Knot x
Sanderling c u u c
Semipalmated Sandpiper x
Western Sandpiper u c u
Least Sandpiper u o c
Baird's Sandpiper o
Dunlin o u o c
Red-necked Phalarope c o o
Red Phalarope x
JAEGERS AND SKUAS
Pomarine Jaeger o
Parasitic Jaeger o u o
GULLS
Heermann's Gull u c c
Mew Gull c u o c
Ring-billed Gull u o o c
California Gull c c c c
Glaucous-winged Gull c c c c
Western Gull c c c c
Glaucous Gull x
Thayer's Gull u o
Herring Gull c o o c
Bonaparte's Gull u u
Sabine's Gull x
Black-legged Kittiwake c u c
TERNS
Caspian Tern u c c
Common Tern o o
Arctic Tern o
AUKS, MURRES AND PUFFINS
Common Murre c c c c
Pigeon Guillemot u c c o
Marbled Murrelet c c c c
Ancient Murrelet o o u
Cassin's Auklet o o o
Rhinoceros Auklet c c u
Tufted Puffin o u
PIGEONS AND DOVES
Rock Dove o
Band-tailed Pigeon u o
Mourning Dove x
SWIFTS
Vaux's Swift o u
HUMMINGBIRDS
Anna's Hummingbird x
Rufous Hummingbird o u u
KINGFISHERS
Belted Kingfisher o u o
WOODPECKERS
Downy Woodpecker o u o o
Hairy Woodpecker o u u o
Northern Flicker c c c c
Pileated Woodpecker o
TYRANT FLYCATCHERS
Olive-sided Flycatcher o o
Western Wood-Pewee o
Willow Flycatcher o
Hammond's Flycatcher o
Pacific-slope Flycatcher u o
LARKS
Horned Lark o
SWALLOWS
Tree Swallow o o
Violet-green Swallow u c c
Cliff Swallow o
Barn Swallow c c
WAGTAILS AND PIPITS
American Pipit u o
KINGLETS
Golden-crowned Kinglet u u o u
Ruby-crowned Kinglet u u o u
WAXWINGS
Cedar Waxwing u u o
WRENS
Bewick's Wren o o o o
Winter Wren u c u u
House Wren o
Marsh Wren o o o o
THRUSHES
Swainson's Thrush u u
Hermit Thrush o o o
American Robin c c c u
Varied Thrush o o o
OLD WORLD WARBLERS
Wrentit o u u o
LONG-TAILED TITS
Bushtit o
CHICKADEES AND TITS
Black-capped Chickadee o o
Chestnut-backed Chickadee c c c c
NUTHATCHES
Red-breasted Nuthatch o o
CREEPERS
Brown Creeper o
CROWS AND JAYS
Gray Jay o o o o
Steller's Jay u c u u
American Crow c c c c
Common Raven c c u c
STARLINGS
European Starling c c c o
VIREOS AND ALLIES
Cassin's Vireo o
Hutton's Vireo u o o
Warbling Vireo u o
WOOD WARBLERS
Orange-crowned Warbler c u
Yellow Warbler o
Yellow-rumped Warbler o u o
Black-throated Gray Warbler u o
Townsend's Warbler u u o o
Hermit Warbler o o
Common Yellowthroat o o
Wilson's Warbler c u
TANAGERS AND ALLIES
Western Tanager o o
SPARROWS, TOWHEES AND JUNCOS
Spotted Towhee u c u o
Chipping Sparrow o
Savannah Sparrow o o o
Fox Sparrow o o u
Song Sparrow c c c c
Lincoln's Sparrow o
White-crowned Sparrow u c u o
White-throated Sparrow x
Golden-crowned Sparrow o o
Dark-eyed Junco u c c c
SALTATORS, CARDINALS AND ALLIES
Black-headed Grosbeak u o
BLACKBIRDS, ORIOLES, GRACKLES, ETC.
Red-winged Blackbird c c u o
Western Meadowlark x
Brewer's Blackbird o
Brown-headed Cowbird c o
FINCHES, SISKINS, CROSSBILLS
Purple Finch o u o
House Finch c c u o
Red Crossbill o o u o
Pine Siskin o o u o
American Goldfinch u u o
Evening Grosbeak u o
OLD WORLD SPARROWS
House Sparrow u c c o
Key:  c(ommon), u(ncommon), o(ccasional), x = single occurrence