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San Mateo County
California United States
255 Species
Ducks, Geese, and Waterfowl
Snow Goose
Greater White-fronted Goose
Brant
Canada Goose
Mute Swan
Blue-winged Teal
Cinnamon Teal
Northern Shoveler
Gadwall
Eurasian Wigeon
American Wigeon
Mallard
Northern Pintail
Green-winged Teal
Canvasback
Ring-necked Duck
Greater Scaup
Lesser Scaup
Greater/Lesser Scaup
Surf Scoter
Black Scoter
Bufflehead
Common Goldeneye
Hooded Merganser
Common Merganser
Red-breasted Merganser
Ruddy Duck
New World Quail
California Quail
Pheasants, Grouse, and Allies
Ring-necked Pheasant
Grebes
Pied-billed Grebe
Horned Grebe
Eared Grebe
Western Grebe
Clark's Grebe
Western/Clark's Grebe
Pigeons and Doves
Rock Pigeon (Feral Pigeon)
Band-tailed Pigeon
Eurasian Collared-Dove
Mourning Dove
Swifts
White-throated Swift
Hummingbirds
Anna's Hummingbird
Allen's Hummingbird
Rails, Gallinules, and Coots
Ridgway's Rail
Virginia Rail
Sora
Common Gallinule
American Coot
American Coot (Red-shielded)
Stilts and Avocets
Black-necked Stilt
American Avocet
Oystercatchers
Black Oystercatcher
Plovers and Lapwings
Black-bellied Plover
Pacific Golden-Plover
Snowy Plover
Semipalmated Plover
Killdeer
Sandpipers and Allies
Whimbrel
Whimbrel (Hudsonian)
Long-billed Curlew
Marbled Godwit
Ruddy Turnstone
Black Turnstone
Red Knot
Surfbird
Sanderling
Dunlin
Least Sandpiper
Pectoral Sandpiper
Western Sandpiper
peep sp.
Short-billed Dowitcher
Long-billed Dowitcher
Short-billed/Long-billed Dowitcher
Wilson's Snipe
Red-necked Phalarope
Spotted Sandpiper
Wandering Tattler
Greater Yellowlegs
Willet
Willet (Western)
Lesser Yellowlegs
Skuas and Jaegers
South Polar Skua
Pomarine Jaeger
Parasitic Jaeger
Pomarine/Parasitic Jaeger
jaeger sp.
Auks, Murres, and Puffins
Common Murre
Pigeon Guillemot
Marbled Murrelet
Scripps's Murrelet
Cassin's Auklet
Rhinoceros Auklet
Tufted Puffin
Gulls, Terns, and Skimmers
Sabine's Gull
Little Gull
Ross's Gull
Heermann's Gull
Short-billed Gull
Ring-billed Gull
Western Gull
California Gull
Herring Gull
Iceland Gull
Iceland Gull (Thayer's)
Glaucous-winged Gull
Glaucous Gull
Larus sp.
Least Tern
Caspian Tern
Common/Arctic Tern
Forster's Tern
Elegant Tern
Black Skimmer
Loons
Red-throated Loon
Pacific Loon
Common Loon
Albatrosses
Laysan Albatross
Black-footed Albatross
Northern Storm-Petrels
Ashy Storm-Petrel
Black Storm-Petrel
Shearwaters and Petrels
Northern Fulmar
Cook's Petrel
Pink-footed Shearwater
Buller's Shearwater
Sooty Shearwater
Black-vented Shearwater
Boobies and Gannets
Brown Booby
Cormorants and Shags
Brandt's Cormorant
Pelagic Cormorant
Double-crested Cormorant
Pelicans
American White Pelican
Brown Pelican
Brown Pelican (California)
Herons, Egrets, and Bitterns
Great Blue Heron
Great Blue Heron (Great Blue)
Great Egret
Great Egret (American)
Snowy Egret
Black-crowned Night-Heron
New World Vultures
Turkey Vulture
Osprey
Osprey
Hawks, Eagles, and Kites
White-tailed Kite
Golden Eagle
Northern Harrier
Sharp-shinned Hawk
Cooper's Hawk
Red-shouldered Hawk
Red-tailed Hawk
Red-tailed Hawk (calurus/alascensis)
Barn-Owls
Barn Owl
Owls
Western Screech-Owl
Great Horned Owl
Northern Pygmy-Owl
Northern Saw-whet Owl
Kingfishers
Belted Kingfisher
Woodpeckers
Red-breasted Sapsucker
Acorn Woodpecker
Downy Woodpecker
Nuttall's Woodpecker
Hairy Woodpecker
Northern Flicker
Falcons and Caracaras
American Kestrel
Merlin
Peregrine Falcon
Tyrant Flycatchers
Olive-sided Flycatcher
Western Wood-Pewee
Willow Flycatcher
Pacific-slope Flycatcher
Pacific-slope/Cordilleran Flycatcher (Western Flycatcher)
Black Phoebe
Say's Phoebe
Vireos, Shrike-Babblers, and Erpornis
Hutton's Vireo
Philadelphia Vireo
Warbling Vireo
Shrikes
Loggerhead Shrike
Crows, Jays, and Magpies
Steller's Jay
California Scrub-Jay
American Crow
Common Raven
Tits, Chickadees, and Titmice
Chestnut-backed Chickadee
Oak Titmouse
Swallows
Northern Rough-winged Swallow
Tree Swallow
Violet-green Swallow
Bank Swallow
Barn Swallow
Barn Swallow (American)
Cliff Swallow
Long-tailed Tits
Bushtit
Sylviid Warblers, Parrotbills, and Allies
Wrentit
Kinglets
Ruby-crowned Kinglet
Golden-crowned Kinglet
Nuthatches
Red-breasted Nuthatch
White-breasted Nuthatch
Pygmy Nuthatch
Treecreepers
Brown Creeper
Gnatcatchers
Blue-gray Gnatcatcher
Wrens
Rock Wren
Pacific Wren
Marsh Wren
Bewick's Wren
Starlings
European Starling
Mockingbirds and Thrashers
California Thrasher
Northern Mockingbird
Thrushes and Allies
Western Bluebird
Varied Thrush
Swainson's Thrush
Hermit Thrush
American Robin
Waxwings
Cedar Waxwing
Old World Sparrows
House Sparrow
Wagtails and Pipits
American Pipit
Finches, Euphonias, and Allies
House Finch
Purple Finch
Cassin's Finch
Red Crossbill
Pine Siskin
Lesser Goldfinch
American Goldfinch
New World Sparrows
Chipping Sparrow
Clay-colored Sparrow
Lark Bunting
Fox Sparrow
Dark-eyed Junco
White-crowned Sparrow
Golden-crowned Sparrow
Harris's Sparrow
White-throated Sparrow
Savannah Sparrow
Song Sparrow
Lincoln's Sparrow
Swamp Sparrow
California Towhee
Spotted Towhee
new world sparrow sp.
Yellow-breasted Chat
Yellow-breasted Chat
Troupials and Allies
Western Meadowlark
Red-winged Blackbird
Tricolored Blackbird
Brown-headed Cowbird
Brewer's Blackbird
Great-tailed Grackle
New World Warblers
Orange-crowned Warbler
MacGillivray's Warbler
Common Yellowthroat
Yellow Warbler
Black-throated Blue Warbler
Palm Warbler
Yellow-rumped Warbler
Black-throated Gray Warbler
Townsend's Warbler
Wilson's Warbler
Cardinals and Allies
Western Tanager
Black-headed Grosbeak
119 Dates
65 Locations
