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Bird Observations

			Date Range: Jan, 1900-2021

Colorado

Updated ~38 hr(s) ago.

294 species (+133 other taxa)	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Snow Goose
Ross's Goose
Snow x Ross's Goose (hybrid)
Snow/Ross's Goose
Graylag Goose
Swan Goose
Graylag x Swan Goose (hybrid)
Greater White-fronted Goose
Pink-footed Goose
Domestic goose sp. (Domestic type)
Brant
Barnacle Goose
Cackling Goose
Snow x Cackling Goose (hybrid)
Ross's x Cackling Goose (hybrid)
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Greater White-fronted x Cackling Goose (hybrid)
Canada Goose
Swan Goose x Canada Goose (hybrid)
Greater White-fronted x Canada Goose (hybrid)
Graylag x Canada Goose (hybrid)
Domestic goose sp. x Canada Goose (hybrid)
Snow x Canada Goose (hybrid)
Ross's x Canada Goose (hybrid)
Cackling/Canada Goose
Snow/Ross's x Cackling/Canada Goose (hybrid)
Mute Swan
Trumpeter Swan
Tundra Swan
Trumpeter/Tundra Swan
swan sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
goose sp.
Muscovy Duck
Wood Duck
Mandarin Duck
Blue-winged Teal
Cinnamon Teal
Northern Shoveler
Gadwall
Northern Shoveler x Gadwall (hybrid)
Eurasian Wigeon
American Wigeon
Eurasian/American Wigeon
Mallard
Muscovy Duck x Mallard (hybrid)
Gadwall x Mallard (hybrid)
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
American Wigeon x Mallard (hybrid)
Mexican Duck
Mallard x Mexican Duck (hybrid)
Mallard/Mexican Duck
American Black Duck
Mallard x American Black Duck (hybrid)
Mallard x Mottled Duck (hybrid)
Mallard x Mexican/Mottled Duck (hybrid)
Northern Pintail
American Wigeon x Northern Pintail (hybrid)
Mallard x Northern Pintail (hybrid)
Green-winged Teal
Blue-winged x Green-winged Teal (hybrid)
Anas sp.
teal sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
dabbling duck sp.
Canvasback
Redhead
Ring-necked Duck
Tufted Duck
Greater Scaup
Lesser Scaup
Ring-necked Duck x Lesser Scaup (hybrid)
Greater/Lesser Scaup
Aythya sp.
Harlequin Duck
Surf Scoter
White-winged Scoter
Black Scoter
Long-tailed Duck
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Bufflehead
Common Goldeneye
Bufflehead x Common Goldeneye (hybrid)
Barrow's Goldeneye
Common x Barrow's Goldeneye (hybrid)
Common/Barrow's Goldeneye
Hooded Merganser
Common Goldeneye x Hooded Merganser (hybrid)
goldeneye sp. x Hooded Merganser (hybrid)
Common Merganser
Red-breasted Merganser
Common/Red-breasted Merganser
merganser sp.
Ruddy Duck
duck sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
waterfowl sp.
Northern Bobwhite
Scaled Quail
California Quail
Gambel's Quail
Wild Turkey
Greater Sage-Grouse
Gunnison Sage-Grouse
Dusky Grouse
Sharp-tailed Grouse
Greater Prairie-Chicken
Lesser Prairie-Chicken
Greater/Lesser Prairie-Chicken
White-tailed Ptarmigan
Ring-necked Pheasant
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Green Pheasant
Indian Peafowl
Red Junglefowl
Chukar
Pied-billed Grebe
Horned Grebe
Red-necked Grebe
Eared Grebe
Horned/Eared Grebe
Western Grebe
Clark's Grebe
Western x Clark's Grebe (hybrid)
Western/Clark's Grebe
grebe sp.
Rock Pigeon
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Band-tailed Pigeon
Eurasian Collared-Dove
African Collared-Dove
Eurasian/African Collared-Dove
Streptopelia sp.
Inca Dove
Common Ground Dove
White-winged Dove
Mourning Dove
pigeon/dove sp.
Greater Roadrunner
White-throated Swift
Costa's Hummingbird
Virginia Rail
Sora
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
American Coot
Sandhill Crane
Whooping Crane
Killdeer
plover sp.
Long-billed Curlew
Long-billed Dowitcher
American Woodcock
Wilson's Snipe
Red Phalarope
Spotted Sandpiper
Greater Yellowlegs
Dunlin
Least Sandpiper
shorebird sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Little Gull
Black-legged Kittiwake
Ivory Gull
Bonaparte's Gull
Franklin's Gull
Short-billed Gull
Ring-billed Gull
Laughing x Ring-billed Gull (hybrid)
Herring Gull
Great Black-backed Gull
Glaucous Gull
Herring x Glaucous Gull (hybrid)
Lesser Black-backed Gull
Herring x Lesser Black-backed Gull (hybrid)
California Gull
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Glaucous-winged Gull
Herring x Glaucous-winged Gull (hybrid)
Glaucous x Glaucous-winged Gull (hybrid)
Herring/Glaucous-winged Gull
Slaty-backed Gull
Iceland Gull
Herring/Iceland Gull
Larus sp.
gull sp.
Red-throated Loon
Pacific Loon
Common Loon
Yellow-billed Loon
loon sp.
Double-crested Cormorant
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
American White Pelican
Black-crowned Night Heron
Yellow-crowned/Black-crowned Night Heron
Green Heron
Great Blue Heron
heron sp.
Turkey Vulture
Osprey
Golden Eagle
Northern Harrier
Sharp-shinned Hawk
Cooper's Hawk
Sharp-shinned/Cooper's Hawk
American Goshawk
Cooper's Hawk/American Goshawk
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Accipiter sp.
Bald Eagle
Golden/Bald Eagle
Harris's Hawk
Red-shouldered Hawk
Red-tailed Hawk
Rough-legged Hawk
Ferruginous Hawk
Buteo sp.
Buteo/eagle sp.
hawk sp.
eagle sp.
Barn Owl
Western Screech-Owl
Eastern Screech-Owl
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Western x Eastern Screech-Owl (hybrid)
screech-owl sp.
Snowy Owl
Great Horned Owl
Northern Pygmy-Owl
Burrowing Owl
Spotted Owl
Barred Owl
Long-eared Owl
Short-eared Owl
Long-eared/Short-eared Owl
Boreal Owl
Northern Saw-whet Owl
owl sp.
Belted Kingfisher
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Williamson's Sapsucker
Yellow-bellied Sapsucker
Red-naped Sapsucker
Yellow-bellied x Red-naped Sapsucker (hybrid)
Yellow-bellied/Red-naped Sapsucker
Red-breasted Sapsucker
Red-naped x Red-breasted Sapsucker (hybrid)
sapsucker sp.
Lewis's Woodpecker
Red-headed Woodpecker
Acorn Woodpecker
Red-bellied Woodpecker
American Three-toed Woodpecker
Downy Woodpecker
Ladder-backed Woodpecker
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Hairy Woodpecker
Downy/Hairy Woodpecker
Northern Flicker
Northern/Gilded Flicker
woodpecker sp.
American Kestrel
Merlin
Gyrfalcon
Peregrine Falcon
Prairie Falcon
large falcon sp.
small falcon sp.
falcon sp.
diurnal raptor sp.
Red-crowned Parrot
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Black Phoebe
Eastern Phoebe
Say's Phoebe
phoebe sp.
Loggerhead Shrike
Northern Shrike
Loggerhead/Northern Shrike
shrike sp.
Canada Jay
Pinyon Jay
Steller's Jay
Blue Jay
Woodhouse's Scrub-Jay
Steller's Jay x Woodhouse's Scrub-Jay (hybrid)
jay sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Black-billed Magpie
Clark's Nutcracker
American Crow
Chihuahuan Raven
Common Raven
raven sp.
crow/raven sp.
Black-capped Chickadee
Mountain Chickadee
Black-capped x Mountain Chickadee (hybrid)
Black-capped/Mountain Chickadee
chickadee sp.
Juniper Titmouse
Horned Lark
Bushtit
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Ruby-crowned Kinglet
Golden-crowned Kinglet
Ruby-crowned/Golden-crowned Kinglet
White-breasted Nuthatch
Pygmy Nuthatch
Red-breasted Nuthatch
nuthatch sp.
Brown Creeper
Blue-gray Gnatcatcher
Rock Wren
Canyon Wren
House Wren
Pacific Wren
Winter Wren
Pacific/Winter Wren
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sedge Wren
Marsh Wren
Carolina Wren
Bewick's Wren
wren sp.
American Dipper
European Starling
Gray Catbird
Curve-billed Thrasher
Brown Thrasher
Long-billed Thrasher
Brown/Long-billed Thrasher
Sage Thrasher
Northern Mockingbird
Eastern Bluebird
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Western Bluebird
Mountain Bluebird
bluebird sp.
Townsend's Solitaire
Varied Thrush
Hermit Thrush
Catharus sp.
Wood Thrush
American Robin
thrush sp.
Bohemian Waxwing
Cedar Waxwing
Bohemian/Cedar Waxwing
House Sparrow
American Pipit
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Brambling
Evening Grosbeak
Pine Grosbeak
Gray-crowned Rosy-Finch
Black Rosy-Finch
Brown-capped Rosy-Finch
rosy-finch sp.
House Finch
Purple Finch
Cassin's Finch
Purple/Cassin's Finch
Haemorhous sp.
Common Redpoll
Hoary Redpoll
Common/Hoary Redpoll
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Red Crossbill
White-winged Crossbill
crossbill sp.
European Goldfinch
Pine Siskin
Lesser Goldfinch
American Goldfinch
new world goldfinch sp.
finch sp.
Lapland Longspur
Chestnut-collared Longspur
Smith's Longspur
Thick-billed Longspur
longspur sp.
Snow Bunting
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Chipping Sparrow
Clay-colored Sparrow
Field Sparrow
Brewer's Sparrow
Black-throated Sparrow
Lark Sparrow
Lark Bunting
American Tree Sparrow
Spizella sp./American Tree Sparrow
Fox Sparrow
Dark-eyed Junco
White-crowned Sparrow
Golden-crowned Sparrow
White-crowned x Golden-crowned Sparrow (hybrid)
Harris's Sparrow
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
White-throated Sparrow
Zonotrichia sp.
Vesper Sparrow
LeConte's Sparrow
Savannah Sparrow
Song Sparrow
Lincoln's Sparrow
Swamp Sparrow
Lincoln's/Swamp Sparrow
Canyon Towhee
Rufous-crowned Sparrow
Green-tailed Towhee
Spotted Towhee
Eastern Towhee
Spotted x Eastern Towhee (hybrid)
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Spotted/Eastern Towhee (Rufous-sided Towhee)
towhee sp.
new world sparrow sp.
Yellow-headed Blackbird
Western Meadowlark
Sturnella meadowlark sp.
Streak-backed Oriole
Bullock's Oriole
Red-winged Blackbird
Brown-headed Cowbird
Rusty Blackbird
Brewer's Blackbird
Rusty/Brewer's Blackbird
Common Grackle
Great-tailed Grackle
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
grackle sp.
blackbird sp.
Ovenbird
Northern Waterthrush
Tennessee Warbler
Orange-crowned Warbler
Common Yellowthroat
Cape May Warbler
Yellow Warbler
Palm Warbler
Pine Warbler
Yellow-rumped Warbler
Yellow-throated Warbler
Prairie Warbler
new world warbler sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Scarlet Tanager
Western Tanager
Northern Cardinal
Rose-breasted Grosbeak
Dickcissel
passerine sp.
bird sp.

KEY:| = insufficient data | = rare to widespread

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