Baseline Reservoir

Colorado · Rocky Mountains

Habitat
Lake
Best Seasons
SummerFall
Difficulty

Moderate

Best Months

June-October

About This Location

Baseline Reservoir is a productive birding destination in Colorado, with 216 species recorded on eBird. This lake habitat attracts Cackling Goose, 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

Blue-winged Teal

Spatula discors

3/5/2026Walden Ponds Wildlife Habitat--Walden & Sawhill Ponds all together3 observed

Acorn Woodpecker

Melanerpes formicivorus

3/5/2026Mountain View Cemetery (Boulder Co.)1 observed

Pacific Wren

Troglodytes pacificus

3/5/2026Tucker Gulch1 observed

Barn Swallow

Hirundo rustica

3/5/2026Walden Ponds Wildlife Habitat--Walden & Sawhill Ponds all together2 observed

Winter Wren

Troglodytes hiemalis

3/5/2026Plaster Reservoir1 observed

Yellow-bellied Sapsucker

Sphyrapicus varius

3/4/2026Mountain View Cemetery (Boulder Co.)1 observed

Western Bluebird

Sialia mexicana

3/4/2026University of Colorado Boulder--South Campus1 observed

Recent Observations

Species reported at this location in the last 14 days

Cackling Goose

653/4/2026

Canada Goose

1503/4/2026

Mallard

23/4/2026

Canvasback

23/4/2026

Redhead

5503/4/2026

Lesser Scaup

43/4/2026

Bufflehead

253/4/2026

Common Goldeneye

353/4/2026

Killdeer

23/4/2026

Ring-billed Gull

453/4/2026

American Herring Gull

23/4/2026

Lesser Black-backed Gull

13/4/2026

Blue Jay

23/4/2026

American Crow

33/4/2026

Black-capped Chickadee

33/4/2026

Northern Flicker

13/2/2026

Red-tailed Hawk

13/2/2026

Black-billed Magpie

13/2/2026

Gadwall

23/1/2026

European Starling

53/1/2026

Birding Tips

  1. 1

    Scan the water surface methodically for diving ducks, loons, and grebes.

  2. 2

    Check the shoreline and mudflats for shorebirds and wading birds.

  3. 3

    Acclimate to altitude before hiking to high-elevation birding spots.

Frequently Asked Questions

When is the best time to visit Baseline Reservoir for birding?
The best months to visit Baseline Reservoir for birding are June-October. The best seasons are Summer and Fall.
What birds can I see at Baseline Reservoir?
Notable species at Baseline Reservoir include Cackling Goose, Canada Goose, Mallard, Canvasback, Redhead. The area supports lake habitats.
How difficult is birding at Baseline Reservoir?
Birding at Baseline Reservoir is rated as Moderate. Some trails may require moderate fitness and basic hiking ability.
What amenities are available at Baseline Reservoir?
Baseline Reservoir offers the following amenities: Parking, Trails.