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Bird Observations

			Date Range: May, 1900-2023

Bill Williams River National Wildlife Refuge

Updated ~25 hr(s) ago.

187 species (+21 other taxa)	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Ross's Goose
Canada Goose
Blue-winged Teal
Cinnamon Teal
Mallard
Mexican Duck
Mallard x Mexican Duck (hybrid)
Northern Pintail
Green-winged Teal
Redhead
Ring-necked Duck
Greater Scaup
Lesser Scaup
Greater/Lesser Scaup
Surf Scoter
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Bufflehead
Common Goldeneye
Red-breasted Merganser
Ruddy Duck
Gambel's Quail
Pied-billed Grebe
Eared Grebe
Western Grebe
Clark's Grebe
Western/Clark's Grebe
Rock Pigeon
Eurasian Collared-Dove
Inca Dove
Common Ground Dove
White-winged Dove
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Mourning Dove
Greater Roadrunner
Lesser Nighthawk
Common Poorwill
Vaux's Swift
White-throated Swift
swift sp.
Black-chinned Hummingbird
Anna's Hummingbird
Costa's Hummingbird
Calliope Hummingbird
hummingbird sp.
Ridgway's Rail
Virginia Rail
Sora
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Common Gallinule
American Coot
Black Rail
Black-necked Stilt
American Avocet
Killdeer
Red-necked Phalarope
Spotted Sandpiper
Solitary Sandpiper
Least Sandpiper
peep sp.
shorebird sp.
Bonaparte's Gull
Franklin's Gull
Ring-billed Gull
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Caspian Tern
Black Tern
Forster's Tern
Common Tern
Common Loon
Double-crested Cormorant
Neotropic Cormorant
cormorant sp.
American White Pelican
Least Bittern
Black-crowned Night Heron
Snowy Egret
Green Heron
Great Egret
Great Blue Heron
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
White-faced Ibis
Turkey Vulture
Osprey
Sharp-shinned Hawk
Cooper's Hawk
Accipiter sp.
Common Black Hawk
Swainson's Hawk
Zone-tailed Hawk
Red-tailed Hawk
hawk sp.
Barn Owl
Western Screech-Owl
Great Horned Owl
Elf Owl
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Long-eared Owl
Belted Kingfisher
Gila Woodpecker
Ladder-backed Woodpecker
Gilded Flicker
Northern/Gilded Flicker
American Kestrel
Peregrine Falcon
Prairie Falcon
Olive-sided Flycatcher
Western Wood-Pewee
Willow Flycatcher
Hammond's Flycatcher
Gray Flycatcher
Dusky Flycatcher
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Hammond's/Dusky Flycatcher
Western Flycatcher
Empidonax sp.
Black Phoebe
Say's Phoebe
Vermilion Flycatcher
Ash-throated Flycatcher
Nutting's Flycatcher
Brown-crested Flycatcher
Myiarchus sp.
Tropical Kingbird
Western Kingbird
Scissor-tailed Flycatcher
new world flycatcher sp.
Bell's Vireo
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Hutton's Vireo
Yellow-throated Vireo
Cassin's Vireo
Plumbeous Vireo
Cassin's/Plumbeous Vireo
solitary vireo sp.
Warbling Vireo
Loggerhead Shrike
Common Raven
Verdin
Bank Swallow
Tree Swallow
Violet-green Swallow
Purple Martin
Northern Rough-winged Swallow
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Barn Swallow
Cliff Swallow
swallow sp.
Ruby-crowned Kinglet
Black-tailed Gnatcatcher
Rock Wren
Canyon Wren
House Wren
Marsh Wren
Bewick's Wren
Cactus Wren
European Starling
Crissal Thrasher
Northern Mockingbird
Swainson's Thrush
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Hermit Thrush
American Robin
Cedar Waxwing
Phainopepla
House Sparrow
House Finch
Pine Siskin
Lesser Goldfinch
Lawrence's Goldfinch
Chipping Sparrow
Brewer's Sparrow
Black-throated Sparrow
Lark Sparrow
Dark-eyed Junco
White-crowned Sparrow
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Savannah Sparrow
Song Sparrow
Lincoln's Sparrow
Abert's Towhee
Green-tailed Towhee
Yellow-breasted Chat
Yellow-headed Blackbird
Western Meadowlark
Hooded Oriole
Bullock's Oriole
Scott's Oriole
Red-winged Blackbird
Brown-headed Cowbird
Brewer's Blackbird
Great-tailed Grackle
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Ovenbird
Worm-eating Warbler
Black-and-white Warbler
Prothonotary Warbler
Orange-crowned Warbler
Lucy's Warbler
Nashville Warbler
MacGillivray's Warbler
Common Yellowthroat
Northern Parula
Yellow Warbler
Yellow-rumped Warbler
Black-throated Gray Warbler
Townsend's Warbler
Hermit Warbler
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Setophaga sp.
Wilson's Warbler
new world warbler sp.
Hepatic Tanager
Summer Tanager
Western Tanager
Northern Cardinal
Rose-breasted Grosbeak
Black-headed Grosbeak
Blue Grosbeak
Lazuli Bunting
Indigo Bunting
Lazuli/Indigo Bunting

KEY:| = insufficient data | = rare to widespread

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