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Bird Observations

			Date Range: Jan-Dec, 1900-2024

Yerba Buena Island / Treasure Island

Updated ~24 hr(s) ago.

151 species (+18 other taxa)	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Snow Goose
Ross's Goose
Greater White-fronted Goose
Brant
Cackling Goose
Canada Goose
Mallard
Greater Scaup
Lesser Scaup
Greater/Lesser Scaup
Surf Scoter
White-winged Scoter
Long-tailed Duck
Bufflehead
Common Goldeneye
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Red-breasted Merganser
Ruddy Duck
duck sp.
Pied-billed Grebe
Horned Grebe
Red-necked Grebe
Eared Grebe
Horned/Eared Grebe
Western Grebe
Clark's Grebe
Western/Clark's Grebe
Rock Pigeon
Eurasian Collared-Dove
Mourning Dove
Anna's Hummingbird
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Allen's Hummingbird
hummingbird sp.
American Coot
Black Oystercatcher
Black-bellied Plover
Killdeer
Semipalmated Plover
Marbled Godwit
Short-billed Dowitcher
Spotted Sandpiper
Willet
Greater Yellowlegs
Black Turnstone
Surfbird
Sanderling
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Dunlin
Least Sandpiper
Western Sandpiper
Parasitic Jaeger
Pigeon Guillemot
Common Murre
Bonaparte's Gull
Heermann's Gull
Short-billed Gull
Ring-billed Gull
Western Gull
Herring Gull
California Gull
Glaucous-winged Gull
Western x Glaucous-winged Gull (hybrid)
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Herring x Glaucous-winged Gull (hybrid)
Iceland Gull
Larus sp.
gull sp.
Black Skimmer
Caspian Tern
Forster's Tern
Elegant Tern
tern sp.
Red-throated Loon
Pacific Loon
Common Loon
loon sp.
Brandt's Cormorant
Pelagic Cormorant
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Double-crested Cormorant
cormorant sp.
American White Pelican
Brown Pelican
Black-crowned Night Heron
Snowy Egret
Great Egret
Great Blue Heron
Turkey Vulture
Osprey
Sharp-shinned Hawk
Cooper's Hawk
Red-shouldered Hawk
Swainson's Hawk
Red-tailed Hawk
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Buteo sp.
Great Horned Owl
Burrowing Owl
Belted Kingfisher
Acorn Woodpecker
Downy Woodpecker
Hairy Woodpecker
Northern Flicker
American Kestrel
Peregrine Falcon
Olive-sided Flycatcher
Western Wood-Pewee
Willow Flycatcher
Western Flycatcher
Black Phoebe
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Say's Phoebe
Western Kingbird
Hutton's Vireo
Warbling Vireo
Northern Shrike
California Scrub-Jay
American Crow
Common Raven
Chestnut-backed Chickadee
Tree Swallow
Northern Rough-winged Swallow
Barn Swallow
swallow sp.
Bushtit
Ruby-crowned Kinglet
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Pygmy Nuthatch
Red-breasted Nuthatch
Brown Creeper
European Starling
Northern Mockingbird
Western Bluebird
Varied Thrush
Swainson's Thrush
Hermit Thrush
American Robin
Cedar Waxwing
House Sparrow
American Pipit
House Finch
Pine Siskin
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Lesser Goldfinch
Lawrence's Goldfinch
American Goldfinch
new world goldfinch sp.
Fox Sparrow
Dark-eyed Junco
White-crowned Sparrow
Golden-crowned Sparrow
White-throated Sparrow
Zonotrichia sp.
Savannah Sparrow
Song Sparrow
Lincoln's Sparrow
California Towhee
Spotted Towhee
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Western Meadowlark
Bullock's Oriole
new world oriole sp.
Red-winged Blackbird
Tricolored Blackbird
Brown-headed Cowbird
Brewer's Blackbird
Orange-crowned Warbler
Lucy's Warbler
Nashville Warbler
Common Yellowthroat
Yellow Warbler
Yellow-rumped Warbler
Townsend's Warbler
Hermit Warbler
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Wilson's Warbler
new world warbler sp.
Western Tanager
Black-headed Grosbeak

KEY:| = insufficient data | = rare to widespread

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