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Bird Observations

			Date Range: Oct, 1900-2022

Larimer

Updated ~35 hr(s) ago.

309 species (+102 other taxa)	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Bar-headed Goose
Snow Goose
Ross's Goose
Snow/Ross's Goose
Swan Goose
Greater White-fronted Goose
Domestic goose sp. (Domestic type)
Brant
Cackling Goose
Snow x Cackling Goose (hybrid)
Ross's x Cackling Goose (hybrid)
Canada Goose
Cackling/Canada Goose
Mute Swan
Trumpeter Swan
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Tundra Swan
goose sp.
Wood Duck
Blue-winged Teal
Cinnamon Teal
Blue-winged/Cinnamon Teal
Northern Shoveler
Gadwall
Eurasian Wigeon
American Wigeon
Eurasian/American Wigeon
Mallard
Gadwall x Mallard (hybrid)
American Wigeon x Mallard (hybrid)
Mexican Duck
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Mallard x Mexican Duck (hybrid)
Mallard/Mexican Duck
Mallard x American Black Duck (hybrid)
Northern Pintail
Mallard x Northern Pintail (hybrid)
Green-winged Teal
teal sp.
dabbling duck sp.
Canvasback
Redhead
Ring-necked Duck
Greater Scaup
Lesser Scaup
Greater/Lesser Scaup
Aythya sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Surf Scoter
White-winged Scoter
Black Scoter
scoter sp.
Long-tailed Duck
Bufflehead
Common Goldeneye
Barrow's Goldeneye
Common/Barrow's Goldeneye
Hooded Merganser
Common Merganser
Red-breasted Merganser
Common/Red-breasted Merganser
Ruddy Duck
duck sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Helmeted Guineafowl
Northern Bobwhite
Wild Turkey
Dusky Grouse
White-tailed Ptarmigan
Ring-necked Pheasant
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)
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Western/Clark's Grebe
grebe sp.
Rock Pigeon
Band-tailed Pigeon
Eurasian Collared-Dove
Inca Dove
White-winged Dove
Mourning Dove
pigeon/dove sp.
Groove-billed Ani
Common Nighthawk
nighthawk sp.
Common Poorwill
Chimney Swift
White-throated Swift
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Black-chinned Hummingbird
Anna's Hummingbird
Broad-tailed Hummingbird
Selasphorus sp.
hummingbird sp.
Virginia Rail
Sora
American Coot
Sandhill Crane
Black-necked Stilt
American Avocet
Black-bellied Plover
American Golden-Plover
golden-plover sp.
Killdeer
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Semipalmated Plover
plover sp.
Hudsonian Godwit
Marbled Godwit
Short-billed Dowitcher
Long-billed Dowitcher
Short-billed/Long-billed Dowitcher
Wilson's Snipe
Wilson's Phalarope
Red Phalarope
Red-necked Phalarope
Red/Red-necked Phalarope
Spotted Sandpiper
Solitary Sandpiper
Lesser Yellowlegs
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Willet
Greater Yellowlegs
Lesser/Greater Yellowlegs
Tringa sp.
Stilt Sandpiper
Sanderling
Dunlin
Baird's Sandpiper
Least Sandpiper
Pectoral Sandpiper
Western Sandpiper
Semipalmated Sandpiper
peep sp.
Calidris sp.
shorebird sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Parasitic Jaeger
Little Gull
Sabine's Gull
Bonaparte's Gull
Franklin's Gull
Short-billed Gull
Ring-billed Gull
Western Gull
Kelp Gull
Herring Gull
Lesser Black-backed Gull
California Gull
Iceland Gull
Herring/Iceland Gull
Larus sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
gull sp.
Caspian Tern
Forster's Tern
Arctic Tern
Common Tern
Common/Arctic Tern
Pacific Loon
Common Loon
loon sp.
Double-crested Cormorant
Double-crested/Neotropic Cormorant
American White Pelican
Brown Pelican
American Bittern
Yellow-crowned Night Heron
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Black-crowned Night Heron
Little Blue Heron
Snowy Egret
Green Heron
Western Cattle Egret
Great Egret
Great Blue Heron
White-faced Ibis
Glossy/White-faced Ibis
ibis sp.
Turkey Vulture
Osprey
Golden Eagle
Northern Harrier
Sharp-shinned Hawk
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cooper's Hawk
Sharp-shinned/Cooper's Hawk
American Goshawk
Cooper's Hawk/American Goshawk
Accipiter sp.
Bald Eagle
Golden/Bald Eagle
Harris's Hawk
Broad-winged Hawk
Swainson's Hawk
Red-tailed Hawk
Rough-legged Hawk
Ferruginous Hawk
Buteo sp.
hawk sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
eagle sp.
Barn Owl
Eastern Screech-Owl
Great Horned Owl
Northern Pygmy-Owl
Burrowing Owl
Long-eared Owl
Short-eared Owl
Boreal Owl
Northern Saw-whet Owl
owl sp.
Belted Kingfisher
Williamson's Sapsucker
Yellow-bellied Sapsucker
Red-naped Sapsucker
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Yellow-bellied/Red-naped Sapsucker
sapsucker sp.
Lewis's Woodpecker
Red-headed Woodpecker
Acorn Woodpecker
Red-bellied Woodpecker
American Three-toed Woodpecker
Downy Woodpecker
Hairy Woodpecker
Downy/Hairy Woodpecker
Northern Flicker
woodpecker sp.
American Kestrel
Merlin
Peregrine Falcon
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Prairie Falcon
large falcon sp.
small falcon sp.
falcon sp.
diurnal raptor sp.
Budgerigar
parakeet sp.
Western Wood-Pewee
Eastern Wood-Pewee
Hammond's Flycatcher
Gray Flycatcher
Dusky Flycatcher
Hammond's/Dusky Flycatcher
Empidonax sp.
Eastern Phoebe
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Say's Phoebe
Cassin's Kingbird
Western Kingbird
yellow-bellied kingbird sp.
Scissor-tailed Flycatcher
new world flycatcher sp.
Cassin's Vireo
Cassin's/Blue-headed Vireo
Plumbeous Vireo
Philadelphia Vireo
Warbling Vireo
vireo sp.
Loggerhead Shrike
Northern Shrike
Loggerhead/Northern Shrike
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Northern/Great Gray Shrike
Canada Jay
Pinyon Jay
Steller's Jay
Blue Jay
Woodhouse's Scrub-Jay
jay sp.
Black-billed Magpie
Clark's Nutcracker
American Crow
Common Raven
raven sp.
crow/raven sp.
Black-capped Chickadee
Mountain Chickadee
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Black-capped/Mountain Chickadee
chickadee sp.
Horned Lark
Tree Swallow
Violet-green Swallow
Barn Swallow
swallow sp.
Bushtit
Ruby-crowned Kinglet
Golden-crowned Kinglet
White-breasted Nuthatch
Pygmy Nuthatch
Red-breasted Nuthatch
nuthatch sp.
Brown Creeper
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Blue-gray Gnatcatcher
Rock Wren
Canyon Wren
House Wren
Winter Wren
Sedge Wren
Marsh Wren
wren sp.
American Dipper
European Starling
Gray Catbird
Brown 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
Gray-cheeked Thrush
Swainson's Thrush
Hermit Thrush
Catharus sp.
Wood Thrush
American Robin
thrush sp.
Cedar Waxwing
Bohemian/Cedar Waxwing
House Sparrow
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
American Pipit
Sprague's Pipit
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
Haemorhous sp.
Common Redpoll
Red Crossbill
Pine Siskin
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Lesser Goldfinch
American Goldfinch
new world goldfinch sp.
finch sp.
Lapland Longspur
Chestnut-collared Longspur
Thick-billed Longspur
longspur sp.
Grasshopper Sparrow
Chipping Sparrow
Clay-colored Sparrow
Field Sparrow
Brewer's Sparrow
Spizella sp.
Lark Sparrow
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
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
Vesper Sparrow
Savannah Sparrow
Song Sparrow
Lincoln's Sparrow
Swamp Sparrow
Green-tailed Towhee
Spotted Towhee
	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-breasted Chat
Yellow-headed Blackbird
Western Meadowlark
Sturnella meadowlark sp.
Scott'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
Prothonotary Warbler
Tennessee Warbler
Orange-crowned Warbler
Nashville Warbler
Virginia's Warbler
MacGillivray's Warbler
Common Yellowthroat
American Redstart
Cape May Warbler
Northern Parula
Magnolia Warbler
Bay-breasted Warbler
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Blackburnian Warbler
Yellow Warbler
Blackpoll Warbler
Black-throated Blue Warbler
Palm Warbler
Yellow-rumped Warbler
Yellow-throated Warbler
Townsend's Warbler
Black-throated Green Warbler
Wilson's Warbler
new world warbler sp.
Western Tanager
Northern Cardinal
Rose-breasted Grosbeak
Black-headed Grosbeak
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Rose-breasted/Black-headed Grosbeak
Blue Grosbeak
Lazuli Bunting
Dickcissel
passerine sp.
bird sp.

KEY:| = insufficient data | = rare to widespread

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