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Bird Observations

			Date Range: Jan, 1900-2024

Elkhorn Slough--Hudson Landing mudflats & Porter Marsh

Updated ~25 hr(s) ago.

153 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
Tundra Swan
Blue-winged Teal
Cinnamon Teal
Northern Shoveler
Gadwall
Eurasian Wigeon
American Wigeon
Eurasian x American Wigeon (hybrid)
Eurasian/American Wigeon
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Mallard
Northern Pintail
Green-winged Teal
teal sp.
Canvasback
Redhead
Ring-necked Duck
Greater Scaup
Lesser Scaup
Greater/Lesser Scaup
Surf Scoter
Bufflehead
Common Goldeneye
Hooded Merganser
Common Merganser
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Red-breasted Merganser
Ruddy Duck
duck sp.
California Quail
Wild Turkey
Pied-billed Grebe
Horned Grebe
Eared Grebe
Western Grebe
Clark's Grebe
Western/Clark's Grebe
Rock Pigeon
Eurasian Collared-Dove
Mourning Dove
pigeon/dove sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Anna's Hummingbird
Virginia Rail
Sora
American Coot
Black-necked Stilt
American Avocet
Black-bellied Plover
Killdeer
Semipalmated Plover
Whimbrel
Long-billed Curlew
Marbled Godwit
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
Red Phalarope
Spotted Sandpiper
Lesser Yellowlegs
Willet
Greater Yellowlegs
Lesser/Greater Yellowlegs
Sanderling
Dunlin
Least Sandpiper
Western Sandpiper
peep sp.
Bonaparte's Gull
Short-billed Gull
Ring-billed Gull
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Western Gull
Herring Gull
California Gull
Glaucous-winged Gull
Iceland Gull
Larus sp.
gull sp.
Forster's Tern
tern sp.
Red-throated Loon
Common Loon
Double-crested Cormorant
American White Pelican
Brown Pelican
Black-crowned Night Heron
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Snowy Egret
Western Cattle Egret
Great Egret
Great Blue Heron
White-faced Ibis
Turkey Vulture
Osprey
White-tailed Kite
Northern Harrier
Sharp-shinned Hawk
Cooper's Hawk
Accipiter sp.
Bald Eagle
Red-shouldered Hawk
Red-tailed Hawk
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Buteo sp.
Great Horned Owl
Belted Kingfisher
Acorn Woodpecker
Downy Woodpecker
Nuttall's Woodpecker
Hairy Woodpecker
Northern Flicker
American Kestrel
Merlin
Peregrine Falcon
Black Phoebe
Say's Phoebe
Hutton's Vireo
Loggerhead Shrike
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Steller's Jay
California Scrub-Jay
American Crow
Common Raven
Chestnut-backed Chickadee
Oak Titmouse
Tree Swallow
Violet-green Swallow
Barn Swallow
Bushtit
Wrentit
Ruby-crowned Kinglet
White-breasted Nuthatch
Red-breasted Nuthatch
Blue-gray Gnatcatcher
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
House Wren
Marsh Wren
Bewick's Wren
European Starling
California Thrasher
Northern Mockingbird
Western Bluebird
Varied Thrush
Hermit Thrush
American Robin
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
Zonotrichia sp.
Savannah Sparrow
Song Sparrow
Lincoln's Sparrow
Swamp Sparrow
California Towhee
Spotted Towhee
Western Meadowlark
Red-winged Blackbird
Brewer's Blackbird
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Orange-crowned Warbler
Common Yellowthroat
Yellow-rumped Warbler
Townsend's Warbler
new world warbler sp.
passerine sp.

KEY:| = insufficient data | = rare to widespread

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