« Start Over

Bird Observations

			Date Range: Aug, 1900-2022

Union Slough NWR

Updated ~34 hr(s) ago.

154 species (+10 other taxa)	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Snow Goose
Greater White-fronted Goose
Canada Goose
Trumpeter Swan
Wood Duck
Blue-winged Teal
Northern Shoveler
Gadwall
Mallard
Northern Pintail
Green-winged Teal
dabbling duck sp.
Redhead
Lesser Scaup
Hooded Merganser
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Ruddy Duck
duck sp.
Wild Turkey
Gray Partridge
Ring-necked Pheasant
Pied-billed Grebe
Eared Grebe
Western Grebe
Rock Pigeon
Eurasian Collared-Dove
Mourning Dove
Yellow-billed Cuckoo
Black-billed Cuckoo
Chimney Swift
Ruby-throated Hummingbird
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Virginia Rail
Sora
Common Gallinule
American Coot
Sandhill Crane
Black-necked Stilt
American Avocet
Black-bellied Plover
American Golden-Plover
Killdeer
Semipalmated Plover
Piping Plover
Whimbrel
Marbled Godwit
Short-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-necked Phalarope
Spotted Sandpiper
Solitary Sandpiper
Lesser Yellowlegs
Willet
Greater Yellowlegs
Ruddy Turnstone
Red Knot
Stilt Sandpiper
Buff-breasted Sandpiper
Sanderling
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Baird's Sandpiper
Least Sandpiper
Pectoral Sandpiper
Semipalmated Sandpiper
peep sp.
shorebird sp.
Little Gull
Franklin's Gull
Ring-billed Gull
gull sp.
Caspian Tern
Black Tern
Forster's Tern
Double-crested Cormorant
American White Pelican
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Black-crowned Night Heron
Little Blue Heron
Snowy Egret
Green Heron
Great Egret
Great Blue Heron
Roseate Spoonbill
Turkey Vulture
Osprey
Northern Harrier
Cooper's Hawk
Bald Eagle
Broad-winged Hawk
Red-tailed Hawk
Great Horned Owl
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Barred Owl
Belted Kingfisher
Red-headed Woodpecker
Red-bellied Woodpecker
Downy Woodpecker
Hairy Woodpecker
Northern Flicker
American Kestrel
Eastern Wood-Pewee
Alder Flycatcher
Willow Flycatcher
Alder/Willow Flycatcher (Traill's Flycatcher)
Empidonax sp.
Eastern Phoebe
Great Crested Flycatcher
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Eastern Kingbird
Yellow-throated Vireo
Warbling Vireo
Red-eyed Vireo
Blue Jay
American Crow
Black-capped Chickadee
Horned Lark
Bank Swallow
Tree Swallow
Purple Martin
Northern Rough-winged Swallow
Barn Swallow
Cliff Swallow
swallow sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
White-breasted Nuthatch
House Wren
Sedge Wren
Marsh Wren
European Starling
Gray Catbird
Brown Thrasher
American Robin
Cedar Waxwing
House Sparrow
American Goldfinch
Grasshopper Sparrow
Chipping Sparrow
Field Sparrow
Lark Sparrow
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
White-throated Sparrow
Vesper Sparrow
Savannah Sparrow
Henslow's Sparrow
Song Sparrow
Swamp Sparrow
Yellow-headed Blackbird
Bobolink
Eastern Meadowlark
Western/Eastern Meadowlark
Orchard Oriole
Baltimore Oriole
Red-winged Blackbird
Brown-headed Cowbird
Common Grackle
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Great-tailed Grackle
Northern Waterthrush
Golden-winged Warbler
Black-and-white Warbler
Nashville Warbler
Common Yellowthroat
American Redstart
Blackburnian Warbler
Yellow Warbler
Chestnut-sided Warbler
Northern Cardinal
Rose-breasted Grosbeak
Indigo Bunting
Dickcissel

KEY:| = insufficient data | = rare to widespread

Download Histogram Data