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Bird Observations

			Date Range: Feb, 1900-2024

San Francisco Bay Trail--S 51st St.

Updated ~39 hr(s) ago.

143 species (+15 other taxa)	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Snow Goose
Greater White-fronted Goose
Cackling Goose
Canada Goose
Tundra Swan
Cinnamon Teal
Northern Shoveler
Gadwall
Eurasian Wigeon
American Wigeon
Mallard
Northern Pintail
Green-winged Teal
Canvasback
Greater Scaup
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Lesser Scaup
Greater/Lesser Scaup
Surf Scoter
Black Scoter
Bufflehead
Common Goldeneye
Ruddy Duck
duck sp.
Wild Turkey
Pied-billed Grebe
Horned Grebe
Eared Grebe
Horned/Eared Grebe
Western Grebe
Clark's Grebe
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Western/Clark's Grebe
Rock Pigeon
Band-tailed Pigeon
Eurasian Collared-Dove
Mourning Dove
White-throated Swift
Anna's Hummingbird
Rufous Hummingbird
Allen's Hummingbird
Rufous/Allen's Hummingbird
hummingbird sp.
Ridgway's Rail
Virginia Rail
American Coot
Black-necked Stilt
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
American Avocet
Black Oystercatcher
Black-bellied Plover
Killdeer
Semipalmated Plover
Whimbrel
Long-billed Curlew
Marbled Godwit
Short-billed Dowitcher
Long-billed Dowitcher
Short-billed/Long-billed Dowitcher
Wilson's Snipe
Spotted Sandpiper
Lesser Yellowlegs
Willet
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Greater Yellowlegs
Lesser/Greater Yellowlegs
Black Turnstone
Sanderling
Dunlin
Least Sandpiper
Western Sandpiper
peep sp.
Bonaparte's Gull
Short-billed Gull
Ring-billed Gull
Western Gull
Herring Gull
California Gull
Glaucous-winged Gull
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Iceland Gull
Larus sp.
gull sp.
Black Skimmer
Caspian Tern
Forster's Tern
Red-throated Loon
Common Loon
Pelagic Cormorant
Double-crested Cormorant
cormorant sp.
American White Pelican
Brown Pelican
Black-crowned Night Heron
Snowy Egret
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Great Egret
Great Blue Heron
Turkey Vulture
Osprey
White-tailed Kite
Northern Harrier
Sharp-shinned Hawk
Cooper's Hawk
Red-shouldered Hawk
Red-tailed Hawk
Buteo sp.
Burrowing Owl
Belted Kingfisher
Downy Woodpecker
Nuttall's Woodpecker
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
American Kestrel
Merlin
Peregrine Falcon
falcon sp.
Black Phoebe
Say's Phoebe
Tropical Kingbird
Hutton's Vireo
California Scrub-Jay
American Crow
Common Raven
Chestnut-backed Chickadee
Oak Titmouse
Tree Swallow
Violet-green Swallow
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Northern Rough-winged Swallow
Bushtit
Ruby-crowned Kinglet
Golden-crowned Kinglet
House Wren
Marsh Wren
Bewick's Wren
European Starling
Northern Mockingbird
Western Bluebird
Hermit Thrush
American Robin
House Sparrow
American Pipit
House Finch
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Purple Finch
Lesser Goldfinch
American Goldfinch
Fox Sparrow
Dark-eyed Junco
White-crowned Sparrow
Golden-crowned Sparrow
Nelson's Sparrow
Savannah Sparrow
Song Sparrow
Lincoln's Sparrow
California Towhee
Spotted Towhee
Western Meadowlark
Red-winged Blackbird
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Brown-headed Cowbird
Brewer's Blackbird
blackbird sp.
Orange-crowned Warbler
Common Yellowthroat
Palm Warbler
Yellow-rumped Warbler
Townsend's Warbler

KEY:| = insufficient data | = rare to widespread

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