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Bird Observations

			Date Range: Aug, 1900-2022

Weld

Updated ~39 hr(s) ago.

260 species (+78 other taxa)	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Snow Goose
Greater White-fronted Goose
Domestic goose sp. (Domestic type)
Cackling Goose
Canada Goose
Cackling/Canada Goose
Mute Swan
Black Swan
Trumpeter Swan
goose sp.
Wood Duck
Blue-winged Teal
Cinnamon Teal
Blue-winged/Cinnamon Teal
Northern Shoveler
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Gadwall
American Wigeon
Eurasian/American Wigeon
Mallard
Mallard x Mexican Duck (hybrid)
Mallard/Mexican Duck
Northern Pintail
Green-winged Teal
teal sp.
dabbling duck sp.
Canvasback
Redhead
Ring-necked Duck
Lesser Scaup
Bufflehead
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Common Goldeneye
Hooded Merganser
Common Merganser
Ruddy Duck
duck sp.
Northern Bobwhite
Wild Turkey
Sharp-tailed Grouse
Ring-necked Pheasant
Pied-billed Grebe
Horned Grebe
Red-necked Grebe
Eared Grebe
Western Grebe
Clark's Grebe
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Western x Clark's Grebe (hybrid)
Western/Clark's Grebe
grebe sp.
Rock Pigeon
Eurasian Collared-Dove
White-winged Dove
Mourning Dove
pigeon/dove sp.
Yellow-billed Cuckoo
Common Nighthawk
nightjar sp.
Black Swift
Chimney Swift
White-throated Swift
Black-chinned Hummingbird
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Calliope Hummingbird
Rufous Hummingbird
Broad-tailed Hummingbird
Selasphorus sp.
hummingbird sp.
Virginia Rail
Sora
American Coot
Sandhill Crane
Black-necked Stilt
American Avocet
Black-bellied Plover
Killdeer
Semipalmated Plover
Piping Plover
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Mountain Plover
Upland Sandpiper
Long-billed Curlew
Marbled Godwit
Short-billed Dowitcher
Long-billed Dowitcher
Short-billed/Long-billed Dowitcher
Wilson's Snipe
Wilson's Phalarope
Red Phalarope
Red-necked Phalarope
Spotted Sandpiper
Solitary Sandpiper
Lesser Yellowlegs
Willet
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Greater Yellowlegs
Lesser/Greater Yellowlegs
Ruddy Turnstone
Stilt Sandpiper
Sanderling
Baird's Sandpiper
Least Sandpiper
Pectoral Sandpiper
Western Sandpiper
Semipalmated Sandpiper
Western/Semipalmated Sandpiper
peep sp.
Calidris sp.
shorebird sp.
Parasitic Jaeger
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Bonaparte's Gull
Laughing Gull
Franklin's Gull
Ring-billed Gull
Herring Gull
Lesser Black-backed Gull
California Gull
Larus sp.
gull sp.
Caspian Tern
Black Tern
Forster's Tern
Common Tern
Forster's/Common Tern
tern sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Pacific Loon
Common Loon
Double-crested Cormorant
Neotropic Cormorant
Double-crested/Neotropic Cormorant
American White Pelican
American Bittern
Least Bittern
Yellow-crowned Night Heron
Black-crowned Night Heron
Yellow-crowned/Black-crowned Night Heron
Little Blue Heron
Snowy Egret
Green Heron
Western Cattle Egret
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Great Egret
Great Blue Heron
white egret sp.
Glossy Ibis
White-faced Ibis
Glossy/White-faced Ibis
Turkey Vulture
Osprey
Golden Eagle
Mississippi Kite
Northern Harrier
Cooper's Hawk
Sharp-shinned/Cooper's Hawk
Accipiter sp.
Bald Eagle
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Swainson's Hawk
Red-tailed Hawk
Ferruginous Hawk
Buteo sp.
Buteo/eagle sp.
hawk sp.
Barn Owl
Eastern Screech-Owl
Great Horned Owl
Burrowing Owl
Long-eared Owl
owl sp.
Belted Kingfisher
Red-naped Sapsucker
Lewis's Woodpecker
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Red-headed Woodpecker
Red-bellied Woodpecker
Downy Woodpecker
Hairy Woodpecker
Downy/Hairy Woodpecker
Northern Flicker
woodpecker sp.
American Kestrel
Merlin
Peregrine Falcon
Prairie Falcon
falcon sp.
diurnal raptor sp.
Olive-sided Flycatcher
Western Wood-Pewee
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Western/Eastern Wood-Pewee
pewee sp. (Contopus sp.)
Alder Flycatcher
Willow Flycatcher
Alder/Willow Flycatcher (Traill's Flycatcher)
Least Flycatcher
Hammond's Flycatcher
Gray Flycatcher
Dusky Flycatcher
Hammond's/Dusky Flycatcher
Gray/Dusky Flycatcher
Western Flycatcher
Empidonax sp.
Eastern Phoebe
Say's Phoebe
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Ash-throated Flycatcher
Great Crested Flycatcher
Myiarchus sp.
Cassin's Kingbird
Western Kingbird
Cassin's/Western Kingbird
yellow-bellied kingbird sp.
Eastern Kingbird
Scissor-tailed Flycatcher
new world flycatcher sp.
Cassin's Vireo
Plumbeous Vireo
Philadelphia Vireo
Warbling Vireo
Red-eyed Vireo
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
vireo sp.
Loggerhead Shrike
Loggerhead/Northern Shrike
Blue Jay
Black-billed Magpie
American Crow
Common Raven
crow/raven sp.
Black-capped Chickadee
Black-capped/Mountain Chickadee
Horned Lark
Bank Swallow
Tree Swallow
Violet-green Swallow
Northern Rough-winged Swallow
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Barn Swallow
Cliff Swallow
swallow sp.
Bushtit
Ruby-crowned Kinglet
White-breasted Nuthatch
Red-breasted Nuthatch
Blue-gray Gnatcatcher
Rock Wren
House Wren
Marsh Wren
Carolina Wren
wren sp.
European Starling
Gray Catbird
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Curve-billed Thrasher
Brown Thrasher
Sage Thrasher
Northern Mockingbird
Eastern Bluebird
Mountain Bluebird
Townsend's Solitaire
Veery
Swainson's Thrush
Hermit Thrush
Catharus sp.
American Robin
Cedar Waxwing
House Sparrow
American Pipit
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
House Finch
Pine Siskin
Lesser Goldfinch
American Goldfinch
finch sp.
Chestnut-collared Longspur
Thick-billed Longspur
longspur sp.
Cassin's Sparrow
Grasshopper Sparrow
Chipping Sparrow
Clay-colored Sparrow
Field Sparrow
Brewer's Sparrow
Spizella sp.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Lark Sparrow
Lark Bunting
Spizella sp./American Tree Sparrow
Dark-eyed Junco
White-crowned Sparrow
Vesper Sparrow
Savannah Sparrow
Baird's Sparrow
Song Sparrow
Lincoln's Sparrow
Green-tailed Towhee
Spotted Towhee
Spotted/Eastern Towhee (Rufous-sided Towhee)
new world sparrow sp.
Yellow-breasted Chat
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Yellow-headed Blackbird
Western Meadowlark
Eastern Meadowlark
Eastern/Chihuahuan Meadowlark
Sturnella meadowlark sp.
Orchard Oriole
Bullock's Oriole
Baltimore Oriole
Bullock's/Baltimore Oriole
new world oriole sp.
Red-winged Blackbird
Brown-headed Cowbird
Brewer's Blackbird
Rusty/Brewer's Blackbird
Common Grackle
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Great-tailed Grackle
grackle sp.
blackbird sp.
Ovenbird
Northern Waterthrush
Black-and-white Warbler
Tennessee Warbler
Orange-crowned Warbler
Nashville Warbler
Virginia's Warbler
Connecticut Warbler
MacGillivray's Warbler
Common Yellowthroat
American Redstart
Northern Parula
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Yellow Warbler
Chestnut-sided Warbler
Yellow-rumped Warbler
Black-throated Gray Warbler
Townsend's Warbler
Black-throated Green Warbler
Canada Warbler
Wilson's Warbler
new world warbler sp.
Western Tanager
Northern Cardinal
Rose-breasted Grosbeak
Black-headed Grosbeak
Rose-breasted x Black-headed Grosbeak (hybrid)
Rose-breasted/Black-headed Grosbeak
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Blue Grosbeak
Lazuli Bunting
Indigo Bunting
Lazuli x Indigo Bunting (hybrid)
Lazuli/Indigo Bunting
Passerina sp.
Dickcissel
passerine sp.

KEY:| = insufficient data | = rare to widespread

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