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Bird Observations

Date Range:
Jan-Dec, 1900-2023

Antero Reservoir

Updated ~17 hr(s) ago.

193 species (+38 other taxa) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Snow Goose
Snow/Ross's Goose
Cackling Goose
Canada Goose
Cackling/Canada Goose
Tundra Swan
Trumpeter/Tundra Swan
Wood Duck
Blue-winged Teal
Cinnamon Teal
Blue-winged/Cinnamon Teal
Northern Shoveler
Gadwall
American Wigeon
Mallard
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mexican Duck
Mallard x Mexican Duck (hybrid)
Mallard/Mexican Duck
Northern Pintail
Green-winged Teal
teal sp.
dabbling duck sp.
Canvasback
Redhead
Ring-necked Duck
Greater Scaup
Lesser Scaup
Greater/Lesser Scaup
Aythya sp.
Surf Scoter
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
White-winged Scoter
Black Scoter
scoter sp.
Long-tailed Duck
Bufflehead
Common Goldeneye
Barrow's Goldeneye
Hooded Merganser
Common Merganser
Red-breasted Merganser
Ruddy Duck
duck sp.
Pied-billed Grebe
Horned Grebe
Red-necked Grebe
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Eared Grebe
Western Grebe
Clark's Grebe
Western x Clark's Grebe (hybrid)
Western/Clark's Grebe
Mourning Dove
Common Nighthawk
Rufous Hummingbird
Broad-tailed Hummingbird
Virginia Rail
Sora
American Coot
Sandhill Crane
Black-necked Stilt
American Avocet
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Black-bellied Plover
American Golden-Plover
Snowy Plover
Semipalmated Plover
Killdeer
Mountain Plover
Whimbrel
Long-billed Curlew
Marbled Godwit
Stilt Sandpiper
Sanderling
Baird's Sandpiper
Least Sandpiper
White-rumped Sandpiper
Pectoral Sandpiper
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Semipalmated Sandpiper
Western Sandpiper
Semipalmated/Western Sandpiper
peep sp.
Short-billed Dowitcher
Long-billed Dowitcher
Short-billed/Long-billed Dowitcher
Wilson's Snipe
Wilson's Phalarope
Red-necked Phalarope
Red Phalarope
Red-necked/Red Phalarope
Spotted Sandpiper
Solitary Sandpiper
Greater Yellowlegs
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Willet
Lesser Yellowlegs
Greater/Lesser Yellowlegs
shorebird sp.
Pomarine Jaeger
Long-tailed Jaeger
jaeger sp.
Sabine's Gull
Bonaparte's Gull
Laughing Gull
Franklin's Gull
Ring-billed Gull
California Gull
Herring Gull
Iceland Gull
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Lesser Black-backed Gull
Glaucous-winged Gull
Larus sp.
gull sp.
Least Tern
Caspian Tern
Black Tern
Common Tern
Forster's Tern
Pacific Loon
Common Loon
Yellow-billed Loon
loon sp.
Double-crested Cormorant
Neotropic Cormorant
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
cormorant sp.
American White Pelican
Brown Pelican
Great Blue Heron
Great Egret
Snowy Egret
Cattle Egret
Black-crowned Night-Heron
White-faced Ibis
Glossy x White-faced Ibis (hybrid)
Glossy/White-faced Ibis
Turkey Vulture
Osprey
Golden Eagle
Northern Harrier
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Northern Goshawk
Bald Eagle
Swainson's Hawk
Red-tailed Hawk
Rough-legged Hawk
Ferruginous Hawk
Buteo sp.
hawk sp.
Burrowing Owl
Belted Kingfisher
Red-naped Sapsucker
Northern Flicker
American Kestrel
Peregrine Falcon
Prairie Falcon
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
falcon sp.
Western Wood-Pewee
Cordilleran Flycatcher
Say's Phoebe
Western Kingbird
Loggerhead Shrike
Steller's Jay
Woodhouse's Scrub-Jay
Black-billed Magpie
Clark's Nutcracker
American Crow
Common Raven
crow/raven sp.
Black-capped Chickadee
Mountain Chickadee
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Horned Lark
Northern Rough-winged Swallow
Tree Swallow
Violet-green Swallow
Bank Swallow
Barn Swallow
Cliff Swallow
swallow sp.
Red-breasted Nuthatch
Pygmy Nuthatch
Rock Wren
Marsh Wren
European Starling
Sage Thrasher
Western Bluebird
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mountain Bluebird
Townsend's Solitaire
American Robin
American Pipit
Gray-crowned Rosy-Finch
Black Rosy-Finch
Brown-capped Rosy-Finch
House Finch
Cassin's Finch
Red Crossbill
Pine Siskin
Lesser Goldfinch
American Goldfinch
Lapland Longspur
Chestnut-collared Longspur
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Thick-billed Longspur
longspur sp.
Snow Bunting
Chipping Sparrow
Clay-colored Sparrow
Brewer's Sparrow
Spizella sp.
Lark Sparrow
Lark Bunting
American Tree Sparrow
Dark-eyed Junco
White-crowned Sparrow
Vesper Sparrow
Savannah Sparrow
Song Sparrow
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Lincoln's Sparrow
Green-tailed Towhee
Spotted Towhee
new world sparrow sp.
Yellow-headed Blackbird
Western Meadowlark
Sturnella meadowlark sp.
Bullock's Oriole
Red-winged Blackbird
Brown-headed Cowbird
Brewer's Blackbird
Common Grackle
blackbird sp.
Orange-crowned Warbler
Virginia's Warbler
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Common Yellowthroat
Yellow Warbler
Yellow-rumped Warbler
Wilson's Warbler
Western Tanager
passerine sp.

KEY:| = insufficient data | = rare to widespread

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