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