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Bird Observations

Date Range:
Jan-Dec, 1900-2023

Denver

Updated ~18 hr(s) ago.

338 species (+132 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
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
Swan Goose x Canada Goose (hybrid)
Greater White-fronted x Canada Goose (hybrid)
Graylag 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.
Mute Swan
Tundra Swan
Trumpeter/Tundra Swan
Wood Duck
Blue-winged Teal
Cinnamon Teal
Blue-winged x Cinnamon Teal (hybrid)
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Blue-winged/Cinnamon Teal
Northern Shoveler
Gadwall
American Wigeon
Eurasian/American Wigeon
Mallard
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.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
dabbling duck sp.
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
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Barrow's Goldeneye
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.
Northern Bobwhite
Wild Turkey
Ring-necked Pheasant
Indian Peafowl
pheasant sp.
Chukar
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
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
Band-tailed Pigeon
Eurasian Collared-Dove
African Collared-Dove
White-winged Dove
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mourning Dove
pigeon/dove sp.
Groove-billed Ani
Yellow-billed Cuckoo
Black-billed Cuckoo
Common Nighthawk
nighthawk sp.
Common Poorwill
nightjar sp.
Black Swift
Chimney Swift
White-throated Swift
swift sp.
Black-chinned Hummingbird
Ruby-throated/Black-chinned Hummingbird
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Anna's Hummingbird
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
American Golden-Plover
Semipalmated Plover
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Killdeer
plover sp.
Upland Sandpiper
Whimbrel
Long-billed Curlew
Marbled Godwit
Ruddy Turnstone
Stilt Sandpiper
Sanderling
Dunlin
Baird's Sandpiper
Least Sandpiper
White-rumped Sandpiper
Pectoral Sandpiper
Semipalmated Sandpiper
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Western Sandpiper
peep sp.
Calidris sp.
Short-billed Dowitcher
Long-billed Dowitcher
Short-billed/Long-billed Dowitcher
Wilson's Snipe
Wilson's Phalarope
Red-necked Phalarope
Red-necked/Red Phalarope
phalarope sp.
Spotted Sandpiper
Solitary Sandpiper
Greater Yellowlegs
Willet
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Lesser Yellowlegs
Greater/Lesser Yellowlegs
Tringa sp.
large shorebird sp.
shorebird sp.
jaeger sp.
Sabine's Gull
Bonaparte's Gull
Little Gull
Laughing Gull
Franklin's Gull
Short-billed Gull
Ring-billed Gull
California Gull
Herring Gull
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Iceland Gull
Lesser Black-backed Gull
Glaucous Gull
Larus sp.
gull sp.
Caspian Tern
Black Tern
Common Tern
Forster's Tern
Common/Forster's Tern
tern sp.
Red-throated Loon
Pacific Loon
Arctic/Pacific Loon
Common Loon
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Yellow-billed Loon
loon sp.
Double-crested Cormorant
Double-crested/Neotropic Cormorant
cormorant sp.
American White Pelican
American Bittern
Great Blue Heron
Great Egret
Snowy Egret
Cattle Egret
white egret sp.
Green Heron
Black-crowned Night-Heron
Yellow-crowned Night-Heron
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Black-crowned/Yellow-crowned Night-Heron
White-faced Ibis
Glossy/White-faced Ibis
Turkey Vulture
Osprey
Golden Eagle
Mississippi Kite
Northern Harrier
Sharp-shinned Hawk
Cooper's Hawk
Sharp-shinned/Cooper's Hawk
Northern Goshawk
Accipiter sp.
Bald Eagle
Golden/Bald Eagle
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Broad-winged Hawk
Swainson's Hawk
Red-tailed Hawk
Rough-legged Hawk
Ferruginous Hawk
Buteo sp.
Buteo/eagle sp.
hawk sp.
eagle sp.
Barn Owl
Eastern Screech-Owl
Snowy Owl
Great Horned Owl
Burrowing Owl
Long-eared Owl
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Short-eared Owl
Northern Saw-whet Owl
owl sp.
Belted Kingfisher
Williamson's Sapsucker
Yellow-bellied Sapsucker
Red-naped Sapsucker
Yellow-bellied/Red-naped Sapsucker
Red-headed Woodpecker
Downy Woodpecker
Hairy Woodpecker
Downy/Hairy Woodpecker
Northern Flicker
Crested Caracara
American Kestrel
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Merlin
Gyrfalcon
Peregrine Falcon
Prairie Falcon
large falcon sp.
small falcon sp.
falcon sp.
diurnal raptor sp.
Budgerigar
Monk Parakeet
Olive-sided Flycatcher
Western Wood-Pewee
Western/Eastern Wood-Pewee
pewee sp. (Contopus sp.)
Willow Flycatcher
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Alder/Willow Flycatcher (Traill's Flycatcher)
Least Flycatcher
Hammond's Flycatcher
Gray Flycatcher
Dusky Flycatcher
Hammond's/Dusky Flycatcher
Gray/Dusky Flycatcher
Cordilleran Flycatcher
Pacific-slope/Cordilleran Flycatcher (Western Flycatcher)
Empidonax sp.
Black Phoebe
Eastern Phoebe
Say's Phoebe
Vermilion Flycatcher
Ash-throated Flycatcher
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Cassin's Kingbird