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Bird Observations

			Date Range: Apr, 1900-2011

San Mateo

Updated ~26 hr(s) ago.

297 species (+37 other taxa)	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Snow Goose
Ross's Goose
Graylag Goose
Greater White-fronted Goose
Brant
Cackling Goose
Canada Goose
Mute Swan
Wood Duck
Blue-winged Teal
Cinnamon Teal
Northern Shoveler
Gadwall
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
King Eider
Harlequin Duck
Surf Scoter
White-winged Scoter
Black Scoter
Long-tailed Duck
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Bufflehead
Common Goldeneye
Hooded Merganser
Common Merganser
Red-breasted Merganser
Ruddy Duck
duck sp.
Helmeted Guineafowl
California Quail
Wild Turkey
Ring-necked Pheasant
Chilean Flamingo
Pied-billed Grebe
Horned Grebe
Red-necked Grebe
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Eared Grebe
Horned/Eared Grebe
Western Grebe
Clark's Grebe
Western/Clark's Grebe
Rock Pigeon
Band-tailed Pigeon
Eurasian Collared-Dove
Mourning Dove
Greater Roadrunner
Lesser Nighthawk
Common Poorwill
Vaux's Swift
White-throated Swift
Anna's Hummingbird
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Calliope 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
American Golden-Plover
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Pacific Golden-Plover
American/Pacific Golden-Plover (Lesser 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
Wilson's Phalarope
Red Phalarope
Red-necked Phalarope
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Red/Red-necked Phalarope
phalarope sp.
Spotted Sandpiper
Solitary Sandpiper
Wandering Tattler
Lesser Yellowlegs
Willet
Greater Yellowlegs
Lesser/Greater Yellowlegs
Ruddy Turnstone
Black Turnstone
Red Knot
Surfbird
Sanderling
Dunlin
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Rock Sandpiper
Least Sandpiper
Pectoral Sandpiper
Western Sandpiper
peep sp.
shorebird sp.
Parasitic Jaeger
Pomarine Jaeger
jaeger sp.
Rhinoceros Auklet
Tufted Puffin
Cassin's Auklet
Marbled Murrelet
Pigeon Guillemot
Common Murre
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Ancient Murrelet
alcid sp.
Little Gull
Black-legged Kittiwake
Sabine's Gull
Bonaparte's Gull
Franklin's Gull
Heermann's Gull
Short-billed Gull
Ring-billed Gull
Western Gull
Herring Gull
Glaucous Gull
California Gull
Glaucous-winged Gull
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Western x Glaucous-winged Gull (hybrid)
Iceland Gull
Larus sp.
gull sp.
Black Skimmer
Least Tern
Caspian Tern
Black Tern
Forster's Tern
Arctic Tern
Common Tern
Elegant Tern
Royal Tern
tern sp.
Red-throated Loon
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Pacific Loon
Common Loon
Yellow-billed Loon
loon sp.
Laysan Albatross
Black-footed Albatross
Short-tailed Albatross
albatross sp.
Fork-tailed Storm-Petrel
Northern Fulmar
Murphy's Petrel
Cook's Petrel
Pterodroma sp.
Pink-footed Shearwater
Sooty Shearwater
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sooty/Short-tailed Shearwater
Black-vented Shearwater
shearwater sp.
Brandt's Cormorant
Pelagic Cormorant
Double-crested Cormorant
cormorant sp.
American White Pelican
Brown Pelican
American Bittern
Black-crowned Night Heron
Snowy Egret
Green Heron
Western Cattle Egret
Great Egret
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Great Blue Heron
Turkey Vulture
Osprey
White-tailed Kite
Golden Eagle
Northern Harrier
Sharp-shinned Hawk
Cooper's Hawk
Sharp-shinned/Cooper's Hawk
Accipiter sp.
Bald Eagle
Red-shouldered Hawk
Swainson's Hawk
Red-tailed Hawk
Rough-legged Hawk
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Barn Owl
Western Screech-Owl
Great Horned Owl
Northern Pygmy-Owl
Burrowing Owl
Spotted Owl
Short-eared Owl
Northern Saw-whet Owl
Belted Kingfisher
Red-breasted Sapsucker
Lewis's Woodpecker
Acorn Woodpecker
Downy Woodpecker
Nuttall's Woodpecker
Hairy Woodpecker
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Downy/Hairy Woodpecker
Pileated Woodpecker
Northern Flicker
American Kestrel
Merlin
Peregrine Falcon
Olive-sided Flycatcher
Western Wood-Pewee
Gray Flycatcher
Western Flycatcher
Black Phoebe
Ash-throated Flycatcher
Tropical Kingbird
Cassin's Kingbird
Western Kingbird
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Hutton's Vireo
Cassin's Vireo
Warbling Vireo
vireo sp.
Loggerhead Shrike
Steller's Jay
California Scrub-Jay
Yellow-billed Magpie
American Crow
Common Raven
Chestnut-backed Chickadee
Oak Titmouse
Horned Lark
Bank Swallow
Tree Swallow
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Violet-green Swallow
Tree/Violet-green Swallow
Purple Martin
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
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Blue-gray Gnatcatcher
Rock Wren
House Wren
Pacific Wren
Marsh Wren
Bewick's Wren
American Dipper
European Starling
California Thrasher
Northern Mockingbird
Western Bluebird
Townsend's Solitaire
Varied Thrush
Swainson's Thrush
Hermit Thrush
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
American Robin
Cedar Waxwing
Ploceus sp.
House Sparrow
Red-throated Pipit
American Pipit
Evening Grosbeak
House Finch
Purple Finch
House/Purple Finch
Red Crossbill
Pine Siskin
Lesser Goldfinch
Lawrence's Goldfinch
American Goldfinch
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
new world goldfinch sp.
finch sp.
Lapland Longspur
Grasshopper Sparrow
Chipping Sparrow
Clay-colored Sparrow
Black-throated Sparrow
Lark Sparrow
Fox Sparrow
Dark-eyed Junco
White-crowned Sparrow
Golden-crowned Sparrow
White-throated Sparrow
Bell's Sparrow
Savannah Sparrow
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Song Sparrow
Lincoln's Sparrow
California Towhee
Spotted Towhee
Yellow-breasted Chat
Western Meadowlark
Hooded Oriole
Bullock's Oriole
Red-winged Blackbird
Tricolored Blackbird
Brown-headed Cowbird
Brewer's Blackbird
Great-tailed Grackle
blackbird sp.
Orange-crowned Warbler
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Lucy's Warbler
Nashville Warbler
MacGillivray's Warbler
Common Yellowthroat
Northern Parula
Yellow Warbler
Palm Warbler
Yellow-rumped Warbler
Black-throated Gray Warbler
Townsend's Warbler
Hermit Warbler
Wilson's Warbler
Western Tanager
Rose-breasted Grosbeak
Black-headed Grosbeak
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Blue Grosbeak
Lazuli Bunting
Dickcissel
passerine sp.

KEY:| = insufficient data | = rare to widespread

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