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Bird Observations

			Date Range: Jun, 1900-2011

San Mateo

Updated ~28 hr(s) ago.

270 species (+21 other taxa)	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Brant
Canada Goose
Mute Swan
Wood Duck
Blue-winged Teal
Cinnamon Teal
Northern Shoveler
Gadwall
American Wigeon
Mallard
Northern Pintail
Green-winged Teal
Canvasback
Redhead
Greater Scaup
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Lesser Scaup
Harlequin Duck
Surf Scoter
White-winged Scoter
Black Scoter
scoter sp.
Long-tailed Duck
Bufflehead
Common Goldeneye
Common Merganser
Red-breasted Merganser
Ruddy Duck
duck sp.
California Quail
Wild Turkey
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Ring-necked Pheasant
Pied-billed Grebe
Horned Grebe
Eared Grebe
Western Grebe
Clark's Grebe
Western/Clark's Grebe
Rock Pigeon
Band-tailed Pigeon
Eurasian Collared-Dove
Mourning Dove
Yellow-billed Cuckoo
Common Nighthawk
Black Swift
Vaux's Swift
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
White-throated Swift
large swift sp.
Anna's 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
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 Phalarope
Red Phalarope
Red-necked Phalarope
Spotted Sandpiper
Wandering Tattler
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Willet
Greater Yellowlegs
Ruddy Turnstone
Black Turnstone
Red Knot
Surfbird
Sanderling
Dunlin
Least Sandpiper
Western Sandpiper
Parasitic Jaeger
Pomarine Jaeger
Rhinoceros Auklet
Tufted Puffin
Horned Puffin
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cassin's Auklet
Least Auklet
Marbled Murrelet
Pigeon Guillemot
Common Murre
Ancient Murrelet
alcid sp.
Little Gull
Black-legged Kittiwake
Bonaparte's Gull
Franklin's Gull
Heermann's Gull
Ring-billed Gull
Western Gull
Herring Gull
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
California Gull
Glaucous-winged Gull
Western x Glaucous-winged Gull (hybrid)
gull sp.
Black Skimmer
Least Tern
Caspian Tern
Black Tern
Forster's Tern
Common Tern
Elegant Tern
Red-billed Tropicbird
Red-throated Loon
Pacific Loon
Common Loon
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Yellow-billed Loon
loon sp.
Ashy Storm-Petrel
Pink-footed Shearwater
Sooty Shearwater
Red-footed Booby
Masked Booby
Brandt's Cormorant
Pelagic Cormorant
Double-crested Cormorant
cormorant sp.
American White Pelican
Brown Pelican
American Bittern
Black-crowned Night Heron
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Little Blue Heron
Snowy Egret
Green Heron
Western Cattle Egret
Great Egret
Great Blue Heron
White-faced Ibis
Turkey Vulture
Osprey
White-tailed Kite
Golden Eagle
Northern Harrier
Sharp-shinned Hawk
Cooper's Hawk
Accipiter sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Red-shouldered Hawk
Red-tailed Hawk
Barn Owl
Western Screech-Owl
Great Horned Owl
Northern Pygmy-Owl
Burrowing Owl
Spotted Owl
Northern Saw-whet Owl
Belted Kingfisher
Red-breasted Sapsucker
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
Peregrine Falcon
Olive-sided Flycatcher
Western Wood-Pewee
Willow Flycatcher
Western Flycatcher
Black Phoebe
Say's Phoebe
Ash-throated Flycatcher
Sulphur-bellied Flycatcher
Cassin's Kingbird
Western Kingbird
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Eastern Kingbird
Scissor-tailed Flycatcher
Bell's Vireo
Hutton's Vireo
Yellow-throated Vireo
Cassin's Vireo
Warbling Vireo
Loggerhead Shrike
Steller's Jay
California Scrub-Jay
American Crow
Common Raven
crow/raven sp.
Chestnut-backed Chickadee
Oak Titmouse
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Horned Lark
Bank Swallow
Tree Swallow
Violet-green Swallow
Purple Martin
Northern Rough-winged Swallow
Barn Swallow
Cliff Swallow
swallow sp.
Bushtit
Wrentit
Golden-crowned Kinglet
White-breasted Nuthatch
Pygmy Nuthatch
Red-breasted Nuthatch
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Brown Creeper
Blue-gray Gnatcatcher
Rock Wren
House Wren
Pacific Wren
Marsh Wren
Bewick's Wren
American Dipper
European Starling
Gray Catbird
California Thrasher
Northern Mockingbird
Western Bluebird
Varied Thrush
Swainson's Thrush
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Hermit Thrush
American Robin
Cedar Waxwing
Phainopepla
House Sparrow
Evening Grosbeak
House Finch
Purple Finch
Red Crossbill
Pine Siskin
Lesser Goldfinch
Lawrence's Goldfinch
American Goldfinch
new world goldfinch sp.
Grasshopper Sparrow
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Chipping Sparrow
Lark Sparrow
Fox Sparrow
Dark-eyed Junco
White-crowned Sparrow
Golden-crowned Sparrow
Bell's Sparrow
Savannah Sparrow
Song Sparrow
California Towhee
Rufous-crowned Sparrow
Spotted Towhee
Yellow-breasted Chat
Yellow-headed Blackbird
Bobolink
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Western Meadowlark
Orchard Oriole
Hooded Oriole
Bullock's Oriole
Red-winged Blackbird
Tricolored Blackbird
Red-winged/Tricolored Blackbird
Brown-headed Cowbird
Brewer's Blackbird
blackbird sp.
Ovenbird
Prothonotary Warbler
Orange-crowned Warbler
MacGillivray's Warbler
Common Yellowthroat
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Hooded Warbler
Northern Parula
Magnolia Warbler
Bay-breasted Warbler
Yellow Warbler
Chestnut-sided Warbler
Black-throated Blue Warbler
Yellow-rumped Warbler
Black-throated Gray Warbler
Townsend's Warbler
Hermit Warbler
Wilson's Warbler
Summer Tanager
Scarlet Tanager
Western Tanager
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Rose-breasted Grosbeak
Black-headed Grosbeak
Blue Grosbeak
Lazuli Bunting
Indigo Bunting
Lazuli x Indigo Bunting (hybrid)

KEY:| = insufficient data | = rare to widespread

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