Close-up of American white ibis standing on a dry tree in a swamp.

Waneka Lake/Greenlee Preserve

Colorado · Rocky Mountains

Habitat
Lake
Best Seasons
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

Brewer's Sparrow

Spizella breweri

4/18/2026Buckingham park1 observed

Wilson's Phalarope

Phalaropus tricolor

4/18/2026NE Broomfield County Pond and Area1 observed

Bank Swallow

Riparia riparia

4/18/2026Sloan's Lake Park1 observed

Broad-tailed Hummingbird

Selasphorus platycercus

4/18/2026Sloan's Lake Park1 observed

Mallard x Mexican Duck (hybrid)

Anas platyrhynchos x diazi

4/18/2026Stearns Lake1 observed

Eastern Phoebe

Sayornis phoebe

4/18/2026Walnut Creek-- Great Western Reservoir to Simms St1 observed

Black-chinned Hummingbird

Archilochus alexandri

4/17/202696 Antelope Dr, Lyons (Boulder Cty, CO)1 observed

Greater Scaup

Aythya marila

4/17/2026Clear Creek Trail--Golden to I-702 observed

Western Sandpiper

Calidris mauri

4/16/2026Crown Hill Regional Park1 observed

Tricolored Heron

Egretta tricolor

4/16/2026Rocky Mountain Arsenal NWR--Lake Ladora1 observed

Fox Sparrow

Passerella iliaca

4/16/2026Elaine T. Valente Open Space1 observed

White Ibis

Eudocimus albus

4/16/2026Big Dry Creek Trail and Retention Pond (stakeout White Ibis, 2026)1 observed

Gray Catbird

Dumetella carolinensis

4/16/2026Twin Lakes (Boulder County)1 observed

Northern Cardinal

Cardinalis cardinalis

4/16/2026Rocky Mountain Arsenal NWR--Discovery Trail1 observed

Recent Observations

Species reported at this location in the last 14 days

Canada Goose

74/17/2026

Blue-winged Teal

44/17/2026

Northern Shoveler

24/17/2026

Gadwall

114/17/2026

American Wigeon

24/17/2026

Mallard

74/17/2026

Green-winged Teal

54/17/2026

Rock Pigeon

14/17/2026

Eurasian Collared-Dove

14/17/2026

Mourning Dove

24/17/2026

American Coot

54/17/2026

American Avocet

64/17/2026

Killdeer

54/17/2026

Western Grebe

14/17/2026

Swainson's Hawk

14/17/2026

Downy Woodpecker

14/17/2026

Northern Flicker

34/17/2026

Say's Phoebe

74/17/2026

Blue Jay

24/17/2026

Black-billed Magpie

14/17/2026

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.