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Idaho Birding Trail LogoMale Sage GrouseMountain Bluebird
Southeast Region

Twin Lakes Reservoir and Swan Lake

Nearest Town: Preston
Site Size: 446 acres

Highlights: Raptors, Shorebirds, Songbirds, Upland Birds, Waterbirds, Waterfowl

Access: Year-round. Admission Fee. Handicapped Access free of charge

Site Location

Directions: I-15 Exit #31; ID 40 E to US 91; zero odometer at intersection; SWAN LAKE: R (S) on US 91 S; at mi 12.1, pull off into the gravel turnout on R (W) side of US 91; Swan Lake is visible to the W. TWIN LAKES RESERVOIR: continue S on US 91 to mi 20.7; turn R on 5000 N; mi 22.5, L at fork in rd; mi 23 enter reservoir-parking fee required.

Description: SWAN LAKE: View from US 91 only. The best way to bird this site is to park in the small gravel pull-out which provides a good view. Swan Lake usually thaws in March making spring migration-a great time to see shorebirds and thousands of waterfowl including Tundra Swan (also hundreds in fall) and Northern Pintail. The wetland is good for nesting Sora, Virginia Rail, and Marsh Wren. Watch for nesting Sandhill Crane and for White-faced Ibis flying over the marsh during the breeding season. Watch also for Peregrine Falcon, Golden Eagle, Red-tailed Hawk, Short-eared Owl, and Northern Harrier during spring and summer, and Bald Eagle in winter. TWIN LAKES RESERVOIR: Surrounded by cottonwood trees with sagebrush hills behind them, Twin Lakes Reservoir is best explored by bike or by car. Up to 150 Common Loon during spring migration (especially April). Other common migrants include Western and Eared Grebes, and many diving ducks. Check cottonwood trees for nesting Bullock’s Oriole.

More Information:
IDFG (208) 232-4703
Soda Springs Chamber of Commerce, (208) 547-4964

Eared Grebe
Photo Copyright Tom Munson
Short-eared Owl
Photo Copyright Tom Munson
Photo Copyright Michael Woodruff

General Services:
ParkingRestroomsNo PhoneNo BoardwalkCampgroundNo Picnic AreaNo Observation AreaNo Visitor CenterNo Interpretive Material AvailableBoat RampNo ConcessionsNo Hiking TrailsNo HuntingFishingNo Water SportsNo OHV/ATVs AllowedNo Horseback Riding

Handicapped Services:
No ParkingNo RestroomsNo PhoneNo BoardwalkNo CampgroundNo Picnic AreaNo Observation AreaNo Visitor CenterNo Interpretive MaterialsNo Boat RampNo ConcessionsNo Hiking Trails
What do these icons mean?

marshes/lakes/ponds Graph illustrating 80% 80%
riverine riparian Graph illustrating 20% 20%

Best Observation Times
Bird Species Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec AM/PM
Raptors Y Y Y Y Y Y Y Y Y Y Y Y
Shorebirds N N N N N N N N N N N N
Songbirds N N N N Y Y Y N N N N N AM
Upland Birds N N N N N N N N N N N N
Waterbirds N N N Y Y Y Y Y N N N N ALL
Waterfowl N N N Y Y Y N N Y Y N N ALL
Target Species for this Site

Select a species from the list to view other sites on the Idaho Birding Trail Sites this species may be observed.

    Geese, Swans and DucksGrebesLoon


    R - Resident 1 - Abundant, easily found s - Statewide
    M - Migrant 2 - Common, but sometimes difficult to find e - Southeast
    W - Winter 3 - Uncommon or local w - Southwest
    S - Summer 4 - Rare or very local c - Central
    5 - Casual, 3-10 accepted records p - Panhandle (North)
    6 - Accidental, 1-2 accepted records
    7 - Experimental
    (B) - Documented breeding evidence(End) - Threatened or Endangered
    (b) - Circumstantial breeding evidence(Int.) - Introduced species

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