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Bird Observations

Date Range:
Jan-Dec, 1900-2011

San Mateo

Updated ~28 hr(s) ago.

444 species (+89 other taxa) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Snow Goose
Ross's Goose
Snow/Ross's Goose
Graylag Goose
Greater White-fronted Goose
Domestic goose sp. (Domestic type)
Brant
Cackling Goose
Canada Goose
Cackling/Canada Goose
Mute Swan
Tundra Swan
goose sp.
Wood Duck
Mandarin Duck
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Blue-winged Teal
Cinnamon Teal
Blue-winged/Cinnamon Teal
Northern Shoveler
Gadwall
Northern Shoveler x Gadwall (hybrid)
Eurasian Wigeon
American Wigeon
Eurasian x American Wigeon (hybrid)
Mallard
Northern Pintail
Green-winged Teal
teal sp.
Canvasback
Redhead
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Ring-necked Duck
Tufted Duck
Greater Scaup
Lesser Scaup
Greater/Lesser Scaup
King Eider
eider sp.
Harlequin Duck
Surf Scoter
White-winged Scoter
Black Scoter
scoter sp.
Long-tailed Duck
Bufflehead
Common Goldeneye
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Barrow's Goldeneye
Common x Barrow's Goldeneye (hybrid)
Common/Barrow's Goldeneye
Smew
Hooded Merganser
Common Merganser
Red-breasted Merganser
merganser sp.
Ruddy Duck
duck sp.
Helmeted Guineafowl
Mountain Quail
California Quail
Wild Turkey
Ring-necked Pheasant
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Chukar
Chilean Flamingo
Pied-billed Grebe
Horned Grebe
Red-necked Grebe
Eared Grebe
Horned/Eared Grebe
Western Grebe
Clark's Grebe
Western/Clark's Grebe
grebe sp.
Rock Pigeon
Band-tailed Pigeon
Eurasian Collared-Dove
Common Ground Dove
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
White-winged Dove
Mourning Dove
Greater Roadrunner
Yellow-billed Cuckoo
Lesser Nighthawk
Common Nighthawk
Common Poorwill
Chuck-will's-widow
Black Swift
Chimney Swift
Vaux's Swift
White-throated Swift
large swift sp.
Anna's Hummingbird
Costa'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
Broad-billed Hummingbird
hummingbird sp.
Ridgway's Rail
Virginia Rail
Sora
Common Gallinule
American Coot
Yellow Rail
Black Rail
Sandhill Crane
Black-necked Stilt
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
American Avocet
Black Oystercatcher
Black-bellied Plover
American Golden-Plover
Pacific Golden-Plover
American/Pacific Golden-Plover (Lesser Golden-Plover)
Killdeer
Semipalmated Plover
Mountain Plover
Snowy Plover
Whimbrel
Long-billed Curlew
Bar-tailed Godwit
Marbled Godwit
Short-billed Dowitcher
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Long-billed Dowitcher
Short-billed/Long-billed Dowitcher
Wilson's Snipe
Wilson's Phalarope
Red Phalarope
Red-necked Phalarope
Red/Red-necked Phalarope
phalarope sp.
Spotted Sandpiper
Solitary Sandpiper
Wandering Tattler
Lesser Yellowlegs
Willet
Greater Yellowlegs
Lesser/Greater Yellowlegs
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Ruddy Turnstone
Black Turnstone
Red Knot
Surfbird
Ruff
Sharp-tailed Sandpiper
Curlew Sandpiper
Stilt Sandpiper
Buff-breasted Sandpiper
Sanderling
Dunlin
Rock Sandpiper
Baird's Sandpiper
Least Sandpiper
Pectoral Sandpiper
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Western Sandpiper
Semipalmated Sandpiper
peep sp.
Calidris sp.
shorebird sp.
Long-tailed Jaeger
Parasitic Jaeger
Pomarine Jaeger
South Polar Skua
jaeger sp.
Rhinoceros Auklet
Tufted Puffin
Horned Puffin
Cassin's Auklet
Least Auklet
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Parakeet Auklet
Marbled Murrelet
Pigeon Guillemot
Common Murre
Ancient Murrelet
Scripps's Murrelet
Guadalupe Murrelet
Scripps's/Guadalupe Murrelet (Xantus's Murrelet)
Craveri's Murrelet
Scripps's/Craveri's Murrelet
Scripps's/Guadalupe/Craveri's Murrelet
murrelet sp.
alcid sp.
Little Gull
Black-legged Kittiwake
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sabine's Gull
Bonaparte's Gull
Laughing Gull
Franklin's Gull
Heermann's Gull
Short-billed Gull
Ring-billed Gull
Western Gull
Herring Gull
Glaucous Gull
Herring x Glaucous Gull (hybrid)
California Gull
Glaucous-winged Gull
Western x Glaucous-winged Gull (hybrid)
Herring x Glaucous-winged Gull (hybrid)
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Glaucous x Glaucous-winged Gull (hybrid)
Slaty-backed Gull
Iceland Gull
Larus sp.
gull sp.
Black Skimmer
Least Tern
Gull-billed Tern
Caspian Tern
Black Tern
Forster's Tern
Arctic Tern
Common Tern
Common/Arctic Tern
Sterna sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Elegant Tern
Royal Tern
tern sp.
Red-billed Tropicbird
tropicbird sp.
Red-throated Loon
Pacific Loon
Common Loon
Yellow-billed Loon
loon sp.
Laysan Albatross
Black-footed Albatross
Short-tailed Albatross
albatross sp.
Wilson's Storm-Petrel
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Fork-tailed Storm-Petrel
Leach's Storm-Petrel
Ashy Storm-Petrel
Black Storm-Petrel
storm-petrel sp.
Northern Fulmar
Murphy's Petrel
Cook's Petrel
Pterodroma sp.
White-chinned Petrel
Pink-footed Shearwater
Flesh-footed Shearwater
Great Shearwater
Buller's Shearwater
Sooty Shearwater
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Short-tailed Shearwater
Sooty/Short-tailed Shearwater
Manx Shearwater
Black-vented Shearwater
black-and-white shearwater sp.
shearwater sp.
Wood Stork
Magnificent Frigatebird
Red-footed Booby
Brown Booby
Masked Booby
Brandt's Cormorant
Pelagic Cormorant
Double-crested Cormorant
cormorant sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
American White Pelican
Brown Pelican
American Bittern
Least Bittern
Yellow-crowned Night Heron
Black-crowned Night Heron
Little Blue Heron
Snowy Egret
Green Heron
Western Cattle Egret
Great Egret
Great Blue Heron
White-faced Ibis
Turkey Vulture
Osprey
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
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
Broad-winged Hawk
Swainson's Hawk
Red-tailed Hawk
Rough-legged Hawk
Ferruginous Hawk
Buteo sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
hawk sp.
Barn Owl
Western Screech-Owl
Snowy Owl
Great Horned Owl
Northern Pygmy-Owl
Burrowing Owl
Spotted Owl
Long-eared Owl
Short-eared Owl
Northern Saw-whet Owl
Belted Kingfisher
Williamson's Sapsucker
Yellow-bellied Sapsucker
Red-naped Sapsucker
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Red-breasted Sapsucker
sapsucker sp.
Lewis's Woodpecker
Acorn Woodpecker
Downy Woodpecker
Nuttall's Woodpecker
Hairy Woodpecker
Downy/Hairy Woodpecker
Pileated Woodpecker
Northern Flicker
woodpecker sp.
American Kestrel
Merlin
Peregrine Falcon
Prairie Falcon
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
large falcon sp.
falcon sp.
diurnal raptor sp.
Budgerigar
Yellow-chevroned Parakeet
Red-masked Parakeet
Olive-sided Flycatcher
Western Wood-Pewee
Willow Flycatcher
Least Flycatcher
Hammond's Flycatcher
Gray Flycatcher
Dusky Flycatcher
Western Flycatcher
Empidonax sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Black Phoebe
Eastern Phoebe
Say's Phoebe
Dusky-capped Flycatcher
Ash-throated Flycatcher
Sulphur-bellied Flycatcher
Tropical Kingbird
Cassin's Kingbird
Thick-billed Kingbird
Western Kingbird
Eastern Kingbird
Scissor-tailed Flycatcher
Bell's Vireo
Hutton's Vireo
Yellow-throated Vireo
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Cassin's Vireo
Plumbeous Vireo
Cassin's/Plumbeous Vireo
solitary vireo sp.
Philadelphia Vireo
Warbling Vireo
Red-eyed Vireo
Yellow-green Vireo
vireo sp.
Loggerhead Shrike
Northern Shrike
Pinyon Jay
Steller's Jay
California Scrub-Jay
Yellow-billed Magpie
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Clark's Nutcracker
American Crow
crow sp.
Common Raven
crow/raven sp.
Mountain Chickadee
Chestnut-backed Chickadee
Oak Titmouse
Horned Lark
Bank Swallow
Tree Swallow
Violet-green Swallow
Tree/Violet-green Swallow
Purple Martin
Northern Rough-winged Swallow
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Barn Swallow
Cliff Swallow
Barn x Cliff Swallow (hybrid)
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
Canyon Wren
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
House Wren
Pacific Wren
Sedge Wren
Marsh Wren
Bewick's Wren
wren sp.
American Dipper
European Starling
Gray Catbird
Brown Thrasher
California Thrasher
Sage Thrasher
Northern Mockingbird
Western Bluebird
Mountain Bluebird
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
bluebird sp.
Townsend's Solitaire
Varied Thrush
Swainson's Thrush
Hermit Thrush
American Robin
Bohemian Waxwing
Cedar Waxwing
Phainopepla
Ploceus sp.
Northern Red Bishop
Scaly-breasted Munia
House Sparrow
Red-throated Pipit
American Pipit
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Evening Grosbeak
House Finch
Purple Finch
House/Purple Finch
Cassin's Finch
Red Crossbill
European Goldfinch
Pine Siskin
Lesser Goldfinch
Lawrence's Goldfinch
American Goldfinch
new world goldfinch sp.
Spinus sp.
finch sp.
Lapland Longspur
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Chestnut-collared Longspur
Snow Bunting
Rustic Bunting
Grasshopper Sparrow
Chipping Sparrow
Clay-colored Sparrow
Black-chinned Sparrow
Brewer's Sparrow
Spizella sp.
Black-throated Sparrow
Lark Sparrow
Lark Bunting
American Tree Sparrow
Fox Sparrow
Dark-eyed Junco
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
White-crowned Sparrow
Golden-crowned Sparrow
Harris's Sparrow
White-throated Sparrow
Bell's Sparrow
Vesper Sparrow
Nelson's Sparrow
Savannah Sparrow
Song Sparrow
Lincoln's Sparrow
Swamp Sparrow
California Towhee
Rufous-crowned Sparrow
Green-tailed Towhee
Spotted Towhee
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
new world sparrow sp.
Yellow-breasted Chat
Yellow-headed Blackbird
Bobolink
Western Meadowlark
Orchard Oriole
Hooded Oriole
Bullock's Oriole
Baltimore Oriole
Red-winged Blackbird
Tricolored Blackbird
Red-winged/Tricolored Blackbird
Brown-headed Cowbird
Rusty Blackbird
Brewer's Blackbird
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Great-tailed Grackle
blackbird sp.
Ovenbird
Worm-eating Warbler
Northern Waterthrush
Golden-winged Warbler
Black-and-white Warbler
Prothonotary Warbler
Tennessee Warbler
Orange-crowned Warbler
Lucy's Warbler
Nashville Warbler
Virginia's Warbler
Connecticut Warbler
MacGillivray's Warbler
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Common Yellowthroat
Hooded Warbler
American Redstart
Cape May Warbler
Northern Parula
Magnolia Warbler
Bay-breasted Warbler
Blackburnian Warbler
Yellow Warbler
Chestnut-sided Warbler
Blackpoll Warbler
Black-throated Blue Warbler
Palm Warbler
Yellow-rumped Warbler
Yellow-throated Warbler
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Prairie Warbler
Black-throated Gray Warbler
Townsend's Warbler
Hermit Warbler
Townsend's x Hermit Warbler (hybrid)
Black-throated Green Warbler
Canada Warbler
Wilson's Warbler
Painted Redstart
new world warbler sp.
Summer Tanager
Scarlet Tanager
Western Tanager
Rose-breasted Grosbeak
Black-headed Grosbeak
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Rose-breasted x Black-headed Grosbeak (hybrid)
Blue Grosbeak
Lazuli Bunting
Indigo Bunting
Lazuli x Indigo Bunting (hybrid)
Lazuli/Indigo Bunting
Dickcissel
passerine sp.

KEY:| = insufficient data | = rare to widespread

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