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Bird Observations

Date Range:
Jan-Dec, 1900-2021

San Mateo

Updated ~23 hr(s) ago.

469 species (+151 other taxa) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Emperor Goose
Snow Goose
Ross's Goose
Snow x Ross's Goose (hybrid)
Snow/Ross's Goose
Graylag Goose (Domestic type)
Graylag x Swan Goose (Domestic type) (hybrid)
Greater White-fronted Goose
Domestic goose sp. (Domestic type)
Brant
Cackling Goose
Canada Goose
Cackling/Canada Goose
goose sp.
Mute Swan
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Tundra Swan
swan sp.
Muscovy Duck (Domestic type)
Wood Duck
Mandarin Duck
Blue-winged Teal
Cinnamon Teal
Blue-winged/Cinnamon Teal
Northern Shoveler
Blue-winged Teal x Northern Shoveler (hybrid)
Gadwall
Northern Shoveler x Gadwall (hybrid)
Eurasian Wigeon
American Wigeon
Eurasian x American Wigeon (hybrid)
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Eurasian/American Wigeon
Mallard
Mallard (Domestic type)
Gadwall x Mallard (hybrid)
Northern Pintail
Green-winged Teal
teal sp.
dabbling duck sp.
Canvasback
Redhead
Ring-necked Duck
Tufted Duck
Greater Scaup
Lesser Scaup
Tufted Duck x Lesser Scaup (hybrid)
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Greater/Lesser Scaup
Tufted Duck x scaup sp. (hybrid)
King Eider
eider sp.
Harlequin Duck
Surf Scoter
White-winged Scoter
Black Scoter
scoter sp.
Long-tailed Duck
Bufflehead
Common Goldeneye
Bufflehead x Common Goldeneye (hybrid)
Barrow's Goldeneye
Common x Barrow's Goldeneye (hybrid)
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Common/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
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
grebe sp.
Rock Pigeon
Band-tailed Pigeon
Eurasian Collared-Dove
Eurasian/African Collared-Dove
Common Ground Dove
White-winged Dove
Mourning Dove
pigeon/dove sp.
Greater Roadrunner
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Yellow-billed Cuckoo
Lesser Nighthawk
Common Nighthawk
nighthawk sp.
Common Poorwill
Chuck-will's-widow
Eastern/Mexican Whip-poor-will
Black Swift
Chimney Swift
Vaux's Swift
White-throated Swift
large swift sp.
swift sp.
Black-chinned Hummingbird
Anna's Hummingbird
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Costa's Hummingbird
Calliope Hummingbird
Rufous Hummingbird
Allen's Hummingbird
Rufous/Allen's Hummingbird
Selasphorus sp.
Broad-billed Hummingbird
hummingbird sp.
Ridgway's Rail
Virginia Rail
Sora
Common Gallinule
American Coot
Yellow Rail
Black Rail
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sandhill Crane
Black-necked Stilt
American Avocet
Black Oystercatcher
Black-bellied Plover
American Golden-Plover
Pacific Golden-Plover
American/Pacific Golden-Plover (Lesser Golden-Plover)
Black-bellied Plover/golden-plover sp.
Snowy Plover
Semipalmated Plover
Killdeer
Mountain Plover
small plover sp.
plover sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Whimbrel
Long-billed Curlew
curlew sp.
Bar-tailed Godwit
Hudsonian Godwit
Marbled Godwit
godwit sp.
Ruddy Turnstone
Black Turnstone
Red Knot
Surfbird
Ruff
Sharp-tailed Sandpiper
Stilt Sandpiper
Curlew Sandpiper
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sanderling
Dunlin
Rock Sandpiper
Baird's Sandpiper
Least Sandpiper
Buff-breasted Sandpiper
Pectoral Sandpiper
Semipalmated Sandpiper
Western Sandpiper
Semipalmated/Western Sandpiper
peep sp.
Calidris sp.
Short-billed Dowitcher
Long-billed Dowitcher
Short-billed/Long-billed Dowitcher
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Wilson's Snipe
Wilson's Phalarope
Red-necked Phalarope
Red Phalarope
Red-necked/Red Phalarope
phalarope sp.
Spotted Sandpiper
Solitary Sandpiper
Wandering Tattler
Greater Yellowlegs
Willet
Lesser Yellowlegs
Greater/Lesser Yellowlegs
Scolopacidae sp.
large shorebird sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
shorebird sp.
South Polar Skua
Pomarine Jaeger
Parasitic Jaeger
Pomarine/Parasitic Jaeger
Long-tailed Jaeger
Parasitic/Long-tailed Jaeger
jaeger sp.
Common Murre
Pigeon Guillemot
Marbled Murrelet
Scripps's Murrelet
Guadalupe Murrelet
Scripps's/Guadalupe Murrelet (Xantus's Murrelet)
Craveri's Murrelet
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Scripps's/Craveri's Murrelet
Scripps's/Guadalupe/Craveri's Murrelet
Ancient Murrelet
murrelet sp.
Cassin's Auklet
Parakeet Auklet
Least Auklet
Rhinoceros Auklet
auklet sp.
Horned Puffin
Tufted Puffin
alcid sp.
Black-legged Kittiwake
Sabine's Gull
Bonaparte's Gull
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Little Gull
Ross's Gull
Laughing Gull
Franklin's Gull
Black-tailed Gull
Heermann's Gull
Short-billed Gull
Ring-billed Gull
Western Gull
California Gull
Herring Gull
Iceland Gull
Lesser Black-backed Gull
Herring/Lesser Black-backed Gull
Slaty-backed Gull
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Glaucous-winged Gull
Western x Glaucous-winged Gull (hybrid)
Herring x Glaucous-winged Gull (hybrid)
Western/Glaucous-winged Gull
Glaucous Gull
Herring x Glaucous Gull (hybrid)
Glaucous-winged x Glaucous Gull (hybrid)
Kelp Gull
Larus sp.
gull sp.
Least Tern
Gull-billed Tern
Caspian Tern
Black Tern
Common Tern
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Arctic Tern
Common/Arctic Tern
Forster's Tern
Sterna sp.
Royal Tern
Elegant Tern
tern sp.
Black Skimmer
Red-billed Tropicbird
tropicbird sp.
Red-throated Loon
Pacific Loon
Common Loon
Yellow-billed Loon
loon sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Salvin's Albatross
Laysan Albatross
Black-footed Albatross
Short-tailed Albatross
albatross sp.
Wilson's Storm-Petrel
Fork-tailed Storm-Petrel
Leach's Storm-Petrel
Ashy Storm-Petrel
Black Storm-Petrel
Least Storm-Petrel
storm-petrel sp. (white-rumped)
storm-petrel sp.
Northern Fulmar
Murphy's Petrel
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hawaiian Petrel
Cook's Petrel
Pterodroma sp.
White-chinned Petrel
Streaked Shearwater
Pink-footed Shearwater
Flesh-footed Shearwater
Great Shearwater
Wedge-tailed Shearwater
Buller's Shearwater