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Bird Observations

			Date Range: Jan-Dec, 1900-2019

Union Slough NWR

Updated ~25 hr(s) ago.

215 species (+12 other taxa)	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Snow Goose
Ross's Goose
Greater White-fronted Goose
Cackling Goose
Canada Goose
Trumpeter Swan
Wood Duck
Blue-winged Teal
Northern Shoveler
Gadwall
American Wigeon
Mallard
Northern Pintail
Green-winged Teal
dabbling duck sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Canvasback
Redhead
Ring-necked Duck
Lesser Scaup
Greater/Lesser Scaup
Bufflehead
Common Goldeneye
Hooded Merganser
Common Merganser
Red-breasted Merganser
Ruddy Duck
duck sp.
Wild Turkey
Gray Partridge
Ring-necked Pheasant
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Pied-billed Grebe
Horned Grebe
Red-necked Grebe
Eared Grebe
Western Grebe
Rock Pigeon
Eurasian Collared-Dove
Mourning Dove
Yellow-billed Cuckoo
Black-billed Cuckoo
Eastern Whip-poor-will
Chimney Swift
Ruby-throated Hummingbird
Virginia Rail
Sora
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Common Gallinule
American Coot
Sandhill Crane
Black-necked Stilt
American Avocet
Black-bellied Plover
American Golden-Plover
Killdeer
Semipalmated Plover
Piping Plover
Whimbrel
Hudsonian Godwit
Marbled Godwit
Short-billed Dowitcher
Long-billed Dowitcher
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Short-billed/Long-billed Dowitcher
American Woodcock
Wilson's Snipe
Wilson's Phalarope
Red Phalarope
Red-necked Phalarope
Spotted Sandpiper
Solitary Sandpiper
Lesser Yellowlegs
Willet
Greater Yellowlegs
Ruddy Turnstone
Red Knot
Stilt Sandpiper
Buff-breasted Sandpiper
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sanderling
Dunlin
Baird's Sandpiper
White-rumped Sandpiper
Least Sandpiper
Pectoral Sandpiper
Semipalmated Sandpiper
peep sp.
Bonaparte's Gull
Franklin's Gull
Ring-billed Gull
Herring Gull
gull sp.
Caspian Tern
Black Tern
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Forster's Tern
Common Tern
Common Loon
Double-crested Cormorant
Neotropic Cormorant
American White Pelican
American Bittern
Least Bittern
Black-crowned Night Heron
Little Blue Heron
Snowy Egret
Green Heron
Great Egret
Great Blue Heron
Glossy Ibis
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
White-faced Ibis
Glossy/White-faced Ibis
Roseate Spoonbill
Turkey Vulture
Osprey
Golden Eagle
Northern Harrier
Sharp-shinned Hawk
Cooper's Hawk
Bald Eagle
Broad-winged Hawk
Red-tailed Hawk
Great Horned Owl
Barred Owl
Belted Kingfisher
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Red-headed Woodpecker
Red-bellied Woodpecker
Downy Woodpecker
Hairy Woodpecker
Northern Flicker
American Kestrel
Merlin
Peregrine Falcon
Olive-sided Flycatcher
Eastern Wood-Pewee
Alder Flycatcher
Willow Flycatcher
Alder/Willow Flycatcher (Traill's Flycatcher)
Least Flycatcher
Empidonax sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Eastern Phoebe
Great Crested Flycatcher
Eastern Kingbird
Yellow-throated Vireo
Blue-headed Vireo
Philadelphia Vireo
Warbling Vireo
Red-eyed Vireo
Blue Jay
American Crow
Common Raven
Black-capped Chickadee
Horned Lark
Bank Swallow
Tree Swallow
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Purple Martin
Northern Rough-winged Swallow
Barn Swallow
Cliff Swallow
swallow sp.
Ruby-crowned Kinglet
White-breasted Nuthatch
House Wren
Winter Wren
Sedge Wren
Marsh Wren
European Starling
Gray Catbird
Brown Thrasher
Eastern Bluebird
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Swainson's Thrush
American Robin
Cedar Waxwing
House Sparrow
House Finch
American Goldfinch
Grasshopper Sparrow
Chipping Sparrow
Clay-colored Sparrow
Field Sparrow
Lark Sparrow
American Tree Sparrow
Fox Sparrow
Dark-eyed Junco
White-crowned Sparrow
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Harris's Sparrow
White-throated Sparrow
Vesper Sparrow
LeConte's Sparrow
Nelson's Sparrow
Savannah Sparrow
Henslow's Sparrow
Song Sparrow
Lincoln's Sparrow
Swamp Sparrow
Yellow-headed Blackbird
Bobolink
Eastern Meadowlark
Western/Eastern Meadowlark
Orchard Oriole
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Baltimore Oriole
Red-winged Blackbird
Brown-headed Cowbird
Rusty Blackbird
Brewer's Blackbird
Common Grackle
Great-tailed Grackle
blackbird sp.
Ovenbird
Northern Waterthrush
Golden-winged Warbler
Black-and-white Warbler
Tennessee Warbler
Orange-crowned Warbler
Nashville Warbler
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Connecticut Warbler
Common Yellowthroat
American Redstart
Magnolia Warbler
Bay-breasted Warbler
Blackburnian Warbler
Yellow Warbler
Chestnut-sided Warbler
Blackpoll Warbler
Palm Warbler
Yellow-rumped Warbler
Canada Warbler
Wilson's Warbler
Northern Cardinal
Rose-breasted Grosbeak
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Indigo Bunting
Dickcissel

KEY:| = insufficient data | = rare to widespread

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