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Bird Observations

			Date Range: Mar, 1900-2024

San Francisco Bay Trail--S 51st St.

Updated ~27 hr(s) ago.

138 species (+13 other taxa)	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Greater White-fronted Goose
Cackling Goose
Canada Goose
Blue-winged Teal
Cinnamon Teal
Northern Shoveler
Gadwall
Eurasian Wigeon
American Wigeon
Mallard
Northern Pintail
Green-winged Teal
teal sp.
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
Red-breasted Merganser
Ruddy Duck
Wild Turkey
Pied-billed Grebe
Horned Grebe
Eared Grebe
Western Grebe
Clark's Grebe
Western/Clark's Grebe
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Rock Pigeon
Eurasian Collared-Dove
Mourning Dove
White-throated Swift
Anna's Hummingbird
Allen's Hummingbird
Rufous/Allen's Hummingbird
Ridgway's Rail
Virginia Rail
Sora
American Coot
Black-necked Stilt
American Avocet
Black Oystercatcher
Black-bellied Plover
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Killdeer
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
Greater Yellowlegs
Lesser/Greater Yellowlegs
Black Turnstone
Sanderling
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Dunlin
Least Sandpiper
Western Sandpiper
peep sp.
Common Murre
Bonaparte's Gull
Short-billed Gull
Ring-billed Gull
Western Gull
Herring Gull
California Gull
Glaucous-winged Gull
Western x Glaucous-winged Gull (hybrid)
Iceland Gull
Larus sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
gull sp.
Black Skimmer
Caspian Tern
Forster's Tern
Red-throated Loon
Common Loon
loon sp.
Pelagic Cormorant
Double-crested Cormorant
Brown Pelican
Black-crowned Night Heron
Snowy Egret
Great Egret
Great Blue Heron
Turkey Vulture
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Osprey
White-tailed Kite
Northern Harrier
Sharp-shinned Hawk
Cooper's Hawk
Bald Eagle
Red-shouldered Hawk
Red-tailed Hawk
Downy Woodpecker
Northern Flicker
American Kestrel
Merlin
Peregrine Falcon
Black Phoebe
Say's Phoebe
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Tropical Kingbird
California Scrub-Jay
American Crow
Common Raven
Chestnut-backed Chickadee
Oak Titmouse
Tree Swallow
Violet-green Swallow
Tree/Violet-green Swallow
Northern Rough-winged Swallow
Barn Swallow
Cliff Swallow
swallow sp.
Bushtit
Ruby-crowned Kinglet
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
White-breasted Nuthatch
House Wren
Marsh Wren
Bewick's Wren
European Starling
Northern Mockingbird
Western Bluebird
Hermit Thrush
American Robin
Cedar Waxwing
House Sparrow
American Pipit
House Finch
Purple Finch
Lesser Goldfinch
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
American Goldfinch
Fox Sparrow
Dark-eyed Junco
White-crowned Sparrow
Golden-crowned Sparrow
Harris's Sparrow
Savannah Sparrow
Song Sparrow
Lincoln's Sparrow
California Towhee
Spotted Towhee
Western Meadowlark
Red-winged Blackbird
Brown-headed Cowbird
Common Yellowthroat
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Yellow-rumped Warbler

KEY:| = insufficient data | = rare to widespread

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