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Bird Observations

			Date Range: Feb, 1900-2024

Colorado

Updated ~41 hr(s) ago.

285 species (+142 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
Snow x Greater White-fronted Goose (hybrid)
Domestic goose sp. (Domestic type)
Brant
Cackling Goose
Snow x Cackling Goose (hybrid)
Ross's x Cackling Goose (hybrid)
Greater White-fronted x Cackling Goose (hybrid)
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Canada Goose
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
Black Swan
Trumpeter Swan
Tundra Swan
Trumpeter/Tundra Swan
swan sp.
goose sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Ruddy Shelduck
Muscovy Duck
Wood Duck
Mandarin Duck
Blue-winged Teal
Cinnamon Teal
Blue-winged x Cinnamon Teal (hybrid)
Blue-winged/Cinnamon Teal
Northern Shoveler
Gadwall
Northern Shoveler x Gadwall (hybrid)
Eurasian Wigeon
American Wigeon
Eurasian/American Wigeon
Mallard
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Muscovy Duck x Mallard (hybrid)
Gadwall x Mallard (hybrid)
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)
Northern Pintail
Mallard x Northern Pintail (hybrid)
Green-winged Teal
American Wigeon x Green-winged Teal (hybrid)
Anas sp.
teal sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
dabbling duck sp.
Red-crested Pochard
Canvasback
Redhead
Canvasback x Redhead (hybrid)
Ring-necked Duck
Greater Scaup
Lesser Scaup
Redhead x Lesser Scaup (hybrid)
Ring-necked Duck x Lesser Scaup (hybrid)
Greater/Lesser Scaup
Aythya sp.
Harlequin Duck
Surf Scoter
White-winged Scoter
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Black Scoter
Long-tailed Duck
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)
Common Merganser
Hooded x Common Merganser (hybrid)
Red-breasted Merganser
Common/Red-breasted Merganser
merganser sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Ruddy Duck
duck sp.
waterfowl sp.
Helmeted Guineafowl
Northern Bobwhite
Scaled Quail
Gambel's Quail
Wild Turkey
Greater Sage-Grouse
Gunnison Sage-Grouse
Dusky Grouse
Sharp-tailed Grouse
Greater Prairie-Chicken
Lesser Prairie-Chicken
White-tailed Ptarmigan
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
grouse sp.
Ring-necked 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.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Rock Pigeon
Band-tailed Pigeon
Eurasian Collared-Dove
African Collared-Dove
Eurasian x African Collared-Dove (hybrid)
Eurasian/African Collared-Dove
Streptopelia sp.
Inca Dove
White-winged Dove
Mourning Dove
pigeon/dove sp.
Greater Roadrunner
Costa's Hummingbird
Virginia Rail
Sora
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
American Coot
Sandhill Crane
Whooping Crane
American Avocet
Killdeer
plover sp.
Long-billed Dowitcher
American Woodcock
Wilson's Snipe
Red-necked Phalarope
Spotted Sandpiper
Lesser Yellowlegs
Greater Yellowlegs
Lesser/Greater Yellowlegs
Dunlin
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Least Sandpiper
shorebird sp.
Black-legged Kittiwake
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
California Gull
Glaucous-winged Gull
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Herring x Glaucous-winged Gull (hybrid)
Herring/Glaucous-winged 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
Double-crested/Neotropic Cormorant
American White Pelican
Black-crowned Night Heron
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Yellow-crowned/Black-crowned Night Heron
Great Egret
Great Blue Heron
heron sp.
Glossy/White-faced Ibis
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
Accipiter sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Bald Eagle
Golden/Bald Eagle
Harris's Hawk
Red-shouldered Hawk
Swainson's 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
Snowy Owl
Great Horned Owl
Northern Pygmy-Owl
Burrowing Owl
Spotted Owl
Long-eared Owl
Short-eared Owl
Long-eared/Short-eared Owl
Boreal Owl
Northern Saw-whet Owl
Boreal/Northern Saw-whet Owl
owl sp.
Belted Kingfisher
Williamson's Sapsucker
Yellow-bellied Sapsucker
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Red-naped Sapsucker
Yellow-bellied/Red-naped Sapsucker
Red-breasted Sapsucker
Red-naped x Red-breasted Sapsucker (hybrid)
Red-naped/Red-breasted Sapsucker
sapsucker sp.
Lewis's Woodpecker
Red-headed Woodpecker
Acorn Woodpecker
Red-bellied Woodpecker
American Three-toed Woodpecker
Downy Woodpecker
Ladder-backed Woodpecker
Downy/Ladder-backed Woodpecker
Hairy Woodpecker
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Downy/Hairy Woodpecker
Dryobates sp.
Northern Flicker
woodpecker sp.
American Kestrel
Merlin
Gyrfalcon
Peregrine Falcon
Prairie Falcon
large falcon sp.
small falcon sp.
falcon sp.
diurnal raptor sp.
Monk Parakeet
Black Phoebe
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Eastern Phoebe
Say's Phoebe
phoebe sp.
Western Kingbird
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
Tree Swallow
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
swallow sp.
Bushtit
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
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Winter Wren
Pacific/Winter Wren
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
Sage Thrasher
Northern Mockingbird
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Eastern Bluebird
Western Bluebird
Mountain Bluebird
bluebird sp.
Townsend's Solitaire
Varied Thrush
Hermit Thrush
American Robin
Rufous-backed 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
House/Purple Finch
Cassin's Finch
Purple/Cassin's Finch
Haemorhous sp.
Common Redpoll
Hoary Redpoll
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Common/Hoary Redpoll
Red Crossbill
Red/Cassia 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
Thick-billed Longspur
longspur sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Snow Bunting
Chipping 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
Harris's Sparrow
White-throated Sparrow
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Zonotrichia sp.
Sagebrush Sparrow
Sagebrush/Bell's Sparrow (Sage Sparrow)
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
Canyon x Spotted Towhee (hybrid)
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Eastern Towhee
Spotted x Eastern Towhee (hybrid)
Spotted/Eastern Towhee (Rufous-sided Towhee)
towhee sp.
new world sparrow sp.
Yellow-headed Blackbird
Western Meadowlark
Western/Eastern Meadowlark
Chihuahuan Meadowlark
Eastern/Chihuahuan Meadowlark
Sturnella meadowlark sp.
Bullock's Oriole
Red-winged Blackbird
Brown-headed Cowbird
Rusty Blackbird
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Brewer's Blackbird
Rusty/Brewer's Blackbird
Common Grackle
Great-tailed Grackle
grackle sp.
blackbird sp.
Northern Waterthrush
Leiothlypis sp.
Common Yellowthroat
Cape May Warbler
Palm Warbler
Pine Warbler
Yellow-rumped Warbler
Yellow-throated Warbler
new world warbler sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Summer Tanager
Scarlet Tanager
Western Tanager
Northern Cardinal
Pyrrhuloxia
passerine sp.
bird sp.

KEY:| = insufficient data | = rare to widespread

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