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Bird Observations

Date Range:
Jan-Dec, 1900-2022

Denver

Updated ~18 hr(s) ago.

326 species (+130 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 (Domestic type)
Swan Goose (Domestic type)
Graylag x Swan Goose (Domestic type) (hybrid)
Greater White-fronted Goose
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)
Canada Goose
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Greater White-fronted x Canada Goose (hybrid)
Graylag Goose (Domestic type) 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)
goose sp.
Tundra Swan
Trumpeter/Tundra Swan
Wood Duck
Blue-winged Teal
Cinnamon Teal
Blue-winged x Cinnamon Teal (hybrid)
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 (Domestic type)
Gadwall x Mallard (hybrid)
Mexican Duck
Mallard x Mexican Duck (hybrid)
Mallard/Mexican Duck
American Black Duck
Mallard x Mottled Duck (hybrid)
Northern Pintail
Green-winged Teal
teal sp.
dabbling duck sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Canvasback
Redhead
Ring-necked Duck
Greater Scaup
Lesser Scaup
Greater/Lesser Scaup
Aythya sp.
Surf Scoter
White-winged Scoter
Black Scoter
scoter sp.
Long-tailed Duck
Bufflehead
Common Goldeneye
Barrow's Goldeneye
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Common/Barrow's Goldeneye
Hooded Merganser
Common Goldeneye x Hooded Merganser (hybrid)
Common Merganser
Red-breasted Merganser
Common/Red-breasted Merganser
Ruddy Duck
duck sp.
Wild Turkey
Ring-necked Pheasant
pheasant sp.
Pied-billed Grebe
Horned Grebe
Red-necked Grebe
Eared Grebe
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Horned/Eared Grebe
Western Grebe
Clark's Grebe
Western x Clark's Grebe (hybrid)
Western/Clark's Grebe
grebe sp.
Rock Pigeon
Band-tailed Pigeon
Eurasian Collared-Dove
White-winged Dove
Mourning Dove
pigeon/dove sp.
Groove-billed Ani
Yellow-billed Cuckoo
Black-billed Cuckoo
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Common Nighthawk
nighthawk sp.
Common Poorwill
Black Swift
Chimney Swift
White-throated Swift
swift sp.
Black-chinned Hummingbird
Ruby-throated/Black-chinned Hummingbird
Anna's Hummingbird
Calliope Hummingbird
Rufous Hummingbird
Broad-tailed Hummingbird
Selasphorus sp.
hummingbird sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Virginia Rail
Sora
American Coot
Sandhill Crane
Black-necked Stilt
American Avocet
Black-bellied Plover
American Golden-Plover
Semipalmated Plover
Killdeer
plover sp.
Upland Sandpiper
Whimbrel
Long-billed Curlew
Marbled Godwit
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Ruddy Turnstone
Stilt Sandpiper
Sanderling
Dunlin
Baird's Sandpiper
Least Sandpiper
White-rumped Sandpiper
Pectoral Sandpiper
Semipalmated Sandpiper
Western Sandpiper
peep sp.
Calidris sp.
Short-billed Dowitcher
Long-billed Dowitcher
Short-billed/Long-billed Dowitcher
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Wilson's Snipe
Wilson's Phalarope
Red-necked Phalarope
Red-necked/Red Phalarope
phalarope sp.
Spotted Sandpiper
Solitary Sandpiper
Greater Yellowlegs
Willet
Lesser Yellowlegs
Greater/Lesser Yellowlegs
Tringa sp.
large shorebird sp.
shorebird sp.
jaeger sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sabine's Gull
Bonaparte's Gull
Little Gull
Laughing Gull
Franklin's Gull
Short-billed Gull
Ring-billed Gull
California Gull
Herring Gull
Iceland Gull
Lesser Black-backed Gull
Glaucous Gull
Larus sp.
gull sp.
Caspian Tern
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Black Tern
Common Tern
Forster's Tern
Common/Forster's Tern
tern sp.
Red-throated Loon
Pacific Loon
Arctic/Pacific Loon
Common Loon
loon sp.
Double-crested Cormorant
Double-crested/Neotropic Cormorant
cormorant sp.
American White Pelican
American Bittern
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Great Blue Heron
Great Egret
Snowy Egret
Cattle Egret
white egret sp.
Green Heron
Black-crowned Night-Heron
Yellow-crowned Night-Heron
Black-crowned/Yellow-crowned Night-Heron
White-faced Ibis
Glossy/White-faced Ibis
Turkey Vulture
Osprey
Golden Eagle
Mississippi Kite
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Northern Harrier
Sharp-shinned Hawk
Cooper's Hawk
Sharp-shinned/Cooper's Hawk
Northern Goshawk
Accipiter sp.
Bald Eagle
Golden/Bald Eagle
Broad-winged Hawk
Swainson's Hawk
Red-tailed Hawk
Rough-legged Hawk
Ferruginous Hawk
Buteo sp.
Buteo/eagle sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
hawk sp.
eagle sp.
Barn Owl
Eastern Screech-Owl
Great Horned Owl
Snowy Owl
Burrowing Owl
Long-eared Owl
Short-eared 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
Red-headed Woodpecker
Downy Woodpecker
Hairy Woodpecker
Downy/Hairy Woodpecker
Northern Flicker
Crested Caracara
American Kestrel
Merlin
Gyrfalcon
Peregrine Falcon
Prairie Falcon
large falcon sp.
small falcon sp.
falcon sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
diurnal raptor sp.
Olive-sided Flycatcher
Western Wood-Pewee
Western/Eastern Wood-Pewee
pewee sp. (Contopus sp.)
Willow Flycatcher
Alder/Willow Flycatcher (Traill's Flycatcher)
Least Flycatcher
Hammond's Flycatcher
Gray Flycatcher
Dusky Flycatcher
Gray/Dusky Flycatcher
Hammond's/Dusky Flycatcher
Cordilleran Flycatcher
Pacific-slope/Cordilleran Flycatcher (Western Flycatcher)
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Empidonax sp.
Black Phoebe
Eastern Phoebe
Say's Phoebe
Vermilion Flycatcher
Ash-throated Flycatcher
Cassin's Kingbird
Western Kingbird
Cassin's/Western Kingbird
Eastern Kingbird
Scissor-tailed Flycatcher
flycatcher sp. (Tyrannidae sp.)
Yellow-throated Vireo
Cassin's Vireo
Blue-headed Vireo
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Cassin's/Blue-headed Vireo
Plumbeous Vireo
Cassin's/Plumbeous Vireo
Philadelphia Vireo
Warbling Vireo
Red-eyed Vireo
vireo sp.
Loggerhead Shrike
Northern Shrike
Loggerhead/Northern Shrike