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Bird Observations

			Date Range: Mar, 1900-2011

San Mateo

Updated ~21 hr(s) ago.

281 species (+27 other taxa)	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Ross's Goose
Greater White-fronted Goose
Brant
Cackling Goose
Canada Goose
Mute Swan
Tundra Swan
Wood Duck
Blue-winged Teal
Cinnamon Teal
Northern Shoveler
Gadwall
Northern Shoveler x Gadwall (hybrid)
Eurasian Wigeon
American Wigeon
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Mallard
Northern Pintail
Green-winged Teal
Canvasback
Ring-necked Duck
Tufted Duck
Greater Scaup
Lesser Scaup
Greater/Lesser Scaup
Harlequin Duck
Surf Scoter
White-winged Scoter
Black Scoter
scoter sp.
Long-tailed Duck
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Bufflehead
Common Goldeneye
Barrow's Goldeneye
Smew
Hooded Merganser
Common Merganser
Red-breasted Merganser
merganser sp.
Ruddy Duck
duck sp.
Mountain Quail
California Quail
Wild Turkey
Ring-necked Pheasant
Pied-billed Grebe
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Horned Grebe
Red-necked Grebe
Eared Grebe
Horned/Eared Grebe
Western Grebe
Clark's Grebe
Western/Clark's Grebe
Rock Pigeon
Band-tailed Pigeon
Eurasian Collared-Dove
Common Ground Dove
Mourning Dove
Greater Roadrunner
Common Poorwill
Vaux's Swift
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
White-throated Swift
Anna's Hummingbird
Rufous Hummingbird
Allen's Hummingbird
Rufous/Allen's Hummingbird
hummingbird sp.
Ridgway's Rail
Virginia Rail
Sora
Common Gallinule
American Coot
Black-necked Stilt
American Avocet
Black Oystercatcher
Black-bellied Plover
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Pacific Golden-Plover
Killdeer
Semipalmated Plover
Snowy Plover
Whimbrel
Long-billed Curlew
Marbled Godwit
Short-billed Dowitcher
Long-billed Dowitcher
Short-billed/Long-billed Dowitcher
Wilson's Snipe
Red Phalarope
Spotted Sandpiper
Wandering Tattler
Lesser Yellowlegs
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Willet
Greater Yellowlegs
Lesser/Greater Yellowlegs
Ruddy Turnstone
Black Turnstone
Red Knot
Surfbird
Sanderling
Dunlin
Rock Sandpiper
Baird's Sandpiper
Least Sandpiper
Western Sandpiper
peep sp.
Pomarine Jaeger
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
jaeger sp.
Rhinoceros Auklet
Cassin's Auklet
Marbled Murrelet
Pigeon Guillemot
Common Murre
Ancient Murrelet
Little Gull
Black-legged Kittiwake
Bonaparte's Gull
Franklin's Gull
Heermann's Gull
Short-billed Gull
Ring-billed Gull
Western Gull
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Herring Gull
Glaucous Gull
California Gull
Glaucous-winged Gull
Western x Glaucous-winged Gull (hybrid)
Herring x Glaucous-winged Gull (hybrid)
Slaty-backed Gull
Iceland Gull
Larus sp.
gull sp.
Black Skimmer
Caspian Tern
Forster's Tern
Red-throated Loon
Pacific Loon
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Common Loon
Yellow-billed Loon
loon sp.
Laysan Albatross
Black-footed Albatross
albatross sp.
Fork-tailed Storm-Petrel
Northern Fulmar
Pink-footed Shearwater
Sooty Shearwater
Short-tailed Shearwater
Sooty/Short-tailed Shearwater
Manx Shearwater
Black-vented Shearwater
Magnificent Frigatebird
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Brown Booby
Brandt's Cormorant
Pelagic Cormorant
Double-crested Cormorant
cormorant sp.
American White Pelican
Brown Pelican
Black-crowned Night Heron
Snowy Egret
Green Heron
Great Egret
Great Blue Heron
Turkey Vulture
Osprey
White-tailed Kite
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Golden Eagle
Northern Harrier
Sharp-shinned Hawk
Cooper's Hawk
Sharp-shinned/Cooper's Hawk
Accipiter sp.
Bald Eagle
Red-shouldered Hawk
Broad-winged Hawk
Red-tailed Hawk
Rough-legged Hawk
Ferruginous Hawk
Barn Owl
Western Screech-Owl
Great Horned Owl
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Northern Pygmy-Owl
Burrowing Owl
Long-eared Owl
Short-eared Owl
Northern Saw-whet Owl
Belted Kingfisher
Yellow-bellied Sapsucker
Red-naped Sapsucker
Red-breasted Sapsucker
Lewis's Woodpecker
Acorn Woodpecker
Downy Woodpecker
Nuttall's Woodpecker
Hairy Woodpecker
Downy/Hairy Woodpecker
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Pileated Woodpecker
Northern Flicker
American Kestrel
Merlin
Peregrine Falcon
Hammond's Flycatcher
Western Flycatcher
Black Phoebe
Eastern Phoebe
Say's Phoebe
Ash-throated Flycatcher
Thick-billed Kingbird
Western Kingbird
Hutton's Vireo
Cassin's Vireo
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Warbling Vireo
Loggerhead Shrike
Steller's Jay
California Scrub-Jay
Yellow-billed Magpie
American Crow
Common Raven
crow/raven sp.
Chestnut-backed Chickadee
Oak Titmouse
Horned Lark
Bank Swallow
Tree Swallow
Violet-green Swallow
Purple Martin
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Northern Rough-winged Swallow
Barn Swallow
Cliff Swallow
swallow sp.
Bushtit
Wrentit
Ruby-crowned Kinglet
Golden-crowned Kinglet
White-breasted Nuthatch
Pygmy Nuthatch
Red-breasted Nuthatch
Brown Creeper
Blue-gray Gnatcatcher
Rock Wren
House Wren
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Pacific Wren
Marsh Wren
Bewick's Wren
American Dipper
European Starling
California Thrasher
Northern Mockingbird
Western Bluebird
Varied Thrush
Hermit Thrush
American Robin
Cedar Waxwing
Scaly-breasted Munia
House Sparrow
American Pipit
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Evening Grosbeak
House Finch
Purple Finch
Red Crossbill
Pine Siskin
Lesser Goldfinch
American Goldfinch
Spinus sp.
Lapland Longspur
Grasshopper Sparrow
Clay-colored Sparrow
Lark Sparrow
Fox Sparrow
Dark-eyed Junco
White-crowned Sparrow
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Golden-crowned Sparrow
Harris's Sparrow
White-throated Sparrow
Nelson's Sparrow
Savannah Sparrow
Song Sparrow
Lincoln's Sparrow
Swamp Sparrow
California Towhee
Rufous-crowned Sparrow
Spotted Towhee
Yellow-headed Blackbird
Western Meadowlark
Hooded Oriole
Bullock's Oriole
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Red-winged Blackbird
Tricolored Blackbird
Brown-headed Cowbird
Brewer's Blackbird
Black-and-white Warbler
Tennessee Warbler
Orange-crowned Warbler
Lucy's Warbler
Nashville Warbler
MacGillivray's Warbler
Common Yellowthroat
American Redstart
Black-throated Blue Warbler
Yellow-rumped Warbler
Prairie Warbler
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Black-throated Gray Warbler
Townsend's Warbler
Hermit Warbler
Wilson's Warbler
Summer Tanager
Western Tanager
Black-headed Grosbeak
Lazuli Bunting

KEY:| = insufficient data | = rare to widespread

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