Union Reservoir
Colorado · Rocky Mountains
Moderate
June-October
About This Location
Union Reservoir is a productive birding destination in Colorado, with 281 species recorded on eBird. This lake habitat attracts American White Pelican, Canada Goose, and Mallard among many others. Elevation changes create diverse habitats, from riparian valleys to alpine meadows, supporting a wide range of species.
Location
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Notable Species
Live Bird Data
Powered by eBird / Cornell Lab of Ornithology
Notable Sightings
Rare or unusual species spotted nearby in the last 14 days
American Barn Owl
Tyto furcata
Blue-winged Teal
Spatula discors
Acorn Woodpecker
Melanerpes formicivorus
Barn Swallow
Hirundo rustica
Winter Wren
Troglodytes hiemalis
Yellow-bellied Sapsucker
Sphyrapicus varius
Western Bluebird
Sialia mexicana
Recent Observations
Species reported at this location in the last 14 days
American White Pelican
Canada Goose
Mallard
Killdeer
Bald Eagle
Common Raven
Cackling Goose
Gadwall
American Wigeon
Eurasian Collared-Dove
Ring-billed Gull
Song Sparrow
Northern Shoveler
Bufflehead
Common Merganser
American Coot
Western Meadowlark
Snow Goose
Green-winged Teal
Redhead
Birding Tips
- 1
Scan the water surface methodically for diving ducks, loons, and grebes.
- 2
Check the shoreline and mudflats for shorebirds and wading birds.
- 3
Acclimate to altitude before hiking to high-elevation birding spots.
Amenities
More in Colorado
Rocky Mountain National Park
Colorado alpine park with accessible tundra birding and elevation-diverse habitats.
Pawnee National Grassland
Colorado shortgrass prairie with grassland specialists and nesting raptors at Pawnee Buttes.
Adobe Creek Reservoir (Blue Lake) - Bent Co
Lake birding hotspot in Colorado with 227 recorded species.