Waneka Lake/Greenlee Preserve

Colorado · Rocky Mountains

Habitat
Lake
Best Seasons
SummerFall
Difficulty

Moderate

Best Months

June-October

Entrance Fee

Free

Hours

Open daily, 5:00 AM - 11:00 PM

About This Location

Waneka Lake/Greenlee Preserve is a productive birding destination in Colorado, with 272 species recorded on eBird. This lake habitat attracts Cackling Goose, Canada Goose, and Gadwall 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

Western Kingbird

Tyrannus verticalis

3/6/2026Rocky Mountain Arsenal NWR--Wildlife Drive1 observed

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 together1 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

Canada Goose

183/6/2026

Gadwall

3/6/2026

American Wigeon

3/6/2026

Mallard

3/6/2026

Bufflehead

3/6/2026

Northern Flicker

23/6/2026

Black-capped Chickadee

13/6/2026

White-crowned Sparrow

53/6/2026

Spotted Towhee

23/6/2026

Cackling Goose

43/5/2026

Ring-necked Duck

23/5/2026

Common Merganser

13/5/2026

Ring-billed Gull

13/5/2026

Downy Woodpecker

13/5/2026

Bushtit

53/5/2026

European Starling

53/5/2026

American Robin

23/5/2026

House Finch

33/5/2026

Song Sparrow

23/5/2026

Red-winged Blackbird

353/5/2026

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.

  4. 4

    A spotting scope is essential here — many waterbirds stay far from shore and are difficult to identify with binoculars alone.

  5. 5

    Winter months bring peak waterfowl diversity — visit November through February for the best duck and goose viewing.

Frequently Asked Questions

When is the best time to visit Waneka Lake/Greenlee Preserve for birding?
The best months to visit Waneka Lake/Greenlee Preserve for birding are June-October. The best seasons are Summer and Fall.
What birds can I see at Waneka Lake/Greenlee Preserve?
Notable species at Waneka Lake/Greenlee Preserve include Cackling Goose, Canada Goose, Gadwall, American Wigeon, Mallard, American Robin, House Finch, Dark-eyed Junco, Green-winged Teal, Redhead, Ring-necked Duck, Ring-billed Gull. The area supports lake habitats.
How difficult is birding at Waneka Lake/Greenlee Preserve?
Birding at Waneka Lake/Greenlee Preserve is rated as Moderate. Some trails may require moderate fitness and basic hiking ability.
Is there an entrance fee at Waneka Lake/Greenlee Preserve?
There is no entrance fee at Waneka Lake/Greenlee Preserve. Hours: Open daily, 5:00 AM - 11:00 PM.
What amenities are available at Waneka Lake/Greenlee Preserve?
Waneka Lake/Greenlee Preserve offers the following amenities: Parking, Restrooms, Trails, Visitor Center.