Harriman State Park

Idaho · Rocky Mountains

ModerateOfficial Site

Habitat

WetlandForestMountain

Best Seasons

SummerWinter

Difficulty

Moderate

Best Months

June-August, December-February

Entrance Fee

$7 per vehicle

Hours

Dawn to dusk daily

About This Location

Harriman State Park protects over 16,000 acres of pristine habitat along the Henry's Fork of the Snake River in eastern Idaho. The park is best known as a wintering ground for Trumpeter Swans, with dozens gathering on the river's warm springs from November through March.

Summer transforms the park into a haven for mountain and riparian species. Great Gray Owls hunt the meadow edges, Sandhill Cranes nest in the wetlands, and Calliope Hummingbirds visit the wildflower-filled meadows. The park's trails wind through lodgepole pine forests alive with woodpeckers and mountain chickadees.

Location

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Notable Species

Trumpeter Swan Sandhill Crane Great Gray Owl Calliope Hummingbird American Dipper

Live Bird Data

Notable Sightings

Say's Phoebe

Sayornis saya

3/4/2026Home, 1677 Marsala Ct, Ammon US-ID 43.48311, -111.935911 observed

Least Sandpiper

Calidris minutilla

3/4/2026Little Rock (Thornock) Rd Ponds5 observed

Least Sandpiper

Calidris minutilla

3/4/2026Little Rock (Thornock) Rd Ponds5 observed

Lesser Black-backed Gull

Larus fuscus

3/4/2026Blacks Creek Bird Reserve1 observed

Lincoln's Sparrow

Melospiza lincolnii

3/4/2026Falk Bridge1 observed

California Gull

Larus californicus

3/4/2026Camp Ida Haven (private)7 observed

Great-tailed Grackle

Quiscalus mexicanus

3/4/2026Malad1 observed

Sandhill Crane

Antigone canadensis

3/4/2026North Menan Butte3 observed

Red-tailed Hawk (calurus/alascensis)

Buteo jamaicensis

3/4/2026Green Canyon1 observed

Red-tailed Hawk (Harlan's)

Buteo jamaicensis

3/4/2026Green Canyon1 observed

Mountain Bluebird

Sialia currucoides

3/4/2026Green Canyon1 observed

Song Sparrow (montana/merrilli)

Melospiza melodia

3/4/2026Green Canyon5 observed

Cassin's Finch

Haemorhous cassinii

3/4/2026Foothills Learning Center1 observed

Turkey Vulture

Cathartes aura

3/4/2026Vietnam Veterans Memorial Highway, Mountain Home, Idaho, US (43.119, -115.647)1 observed

Turkey Vulture

Cathartes aura

3/4/2026Vietnam Veterans Memorial Highway, Mountain Home, Idaho, US (43.119, -115.647)1 observed

Turkey Vulture

Cathartes aura

3/3/2026S 18th St, Payette US-ID (44.0724,-116.9211)1 observed

Sandhill Crane

Antigone canadensis

3/3/2026Hwy 30 - Bannock Co.2 observed

Bewick's Wren

Thryomanes bewickii

3/3/2026Kashyyyk2 observed

Eurasian Wigeon

Mareca penelope

3/3/2026Touchmark; fields, golf course, pond1 observed

Lesser Yellowlegs

Tringa flavipes

3/3/2026Fort Boise WMA2 observed