The Birding Hub
The Birding Hub

Harrison/Willow Creek Reservoir

Montana · Rocky Mountains

ModerateView on eBird
Habitat
LakeRiver/Riparian
Best Seasons
SummerFall
Difficulty

Moderate

Best Months

June-October

About This Location

Harrison/Willow Creek Reservoir is a productive birding destination in Montana, with 212 species recorded on eBird. This lake and river/riparian habitat attracts a wide variety of species 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

Common LoonBald EagleDouble-crested CormorantRing-billed GullBufflehead

Live Bird Data

Powered by eBird / Cornell Lab of Ornithology

Notable Sightings

Rare or unusual species spotted nearby in the last 14 days

Burrowing Owl

Athene cunicularia

2/24/2026Bench Rd.1 observed

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.

Amenities

Parking
Trails

More in Montana

Glacier National Park

Continental Divide park with alpine ptarmigan, Harlequin Ducks, and boreal forest species.

American Prairie Reserve - White Rock

Grassland birding hotspot in Montana with 211 recorded species.

Arco Ponds

Mountain birding hotspot in Montana with 239 recorded species.

Birding Guides

Where to See Bald Eagles in North America: A Seasonal Viewing Guide

11 min read

The Ultimate Guide to Fall Bird Migration: Hawks, Sparrows, and Confusing Plumages

10 min read

How to Identify Birds Like an Expert: The Four Keys to Field Identification

11 min read

Frequently Asked Questions

When is the best time to visit Harrison/Willow Creek Reservoir for birding?▼
The best months to visit Harrison/Willow Creek Reservoir for birding are June-October. The best seasons are Summer and Fall.
What birds can I see at Harrison/Willow Creek Reservoir?▼
Notable species at Harrison/Willow Creek Reservoir include Common Loon, Bald Eagle, Double-crested Cormorant, Ring-billed Gull, Bufflehead. The area supports lake, river/riparian habitats.
How difficult is birding at Harrison/Willow Creek Reservoir?▼
Birding at Harrison/Willow Creek Reservoir is rated as Moderate. Some trails may require moderate fitness and basic hiking ability.
What amenities are available at Harrison/Willow Creek Reservoir?▼
Harrison/Willow Creek Reservoir offers the following amenities: Parking, Trails.