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Idaho Birding Trail LogoMale Sage GrouseMountain Bluebird
Southeast Region

Robbers Roost (Portneuf Wildlife Management Area)

Nearest Town: Pocatello
Site Size: 3104 acres

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

Access: Year-round. 4x4 vehicles recommended. 4x4 vehicles recommended. Road closed from Nov 15-June 1, open to hiking. Access free of charge.

Site Location

Directions: I-15 Exit #47; take US 30 E; zero your odometer at the Chevron station; mi 0.5 turn L (N) on Old US 91; mi 3.9 turn R (E) at Portneuf WMA sign (Robbers Roost Rd); continue to the gate at mile 4.1; a high clearance vehicle is needed beyond the gate; if you proceed, there are turnouts at mi 4.2 and 4.5.

Description: Sharp-tailed Grouse can be found on "benches", and watch for Red-tailed Hawks. Look for Green-tailed Towhees nesting in sagebrush habitat. The riparian habitat is likely to have nesting Yellow Warblers. MacGillivray’s and Wilson’s Warblers can be seen during migration. Watch this area for accipiters. Golden Eagles, Northern Harriers, Red-tailed Hawks and Great-horned Owls are commonly seen on Portneuf WMA. Swainson’s and Rough-legged Hawks are early spring visitors, passing through on their migration flights north. Blue, Ruffed and breeding Columbia Sharp-tailed Grouse are commonly found on the WMA. Turkey, Gray Partridge and Ring-necked Pheasants are less common resident upland bird species. Yellow Warbler, Yellow-rumped Warbler, MacGillivray’s Warbler, Vesper Sparrow, Song Sparrow, Savannah Sparrow, American Goldfinch, Lazuli Bunting, Western Dingbird, Western Wood Pewee, Black-capped chickadee, Sage Thrasher, Rufous-sided Towhee, Green-tailed Towhee, American Robin, Ruby-crowned Kinglet, Western Meadowlark, and Pine Siskin are some of the birds that inhabit Portneuf WMA’s riparian and upland habitat.

More Information:
IDFG (208) 232-4703
Pocatello Chamber of Commerce (208) 233-1525

American Robin
Photo Copyright Michael Woodruff
Ruby-crowned Kinglet
Photo Copyright Camden Hackworth
Vesper Sparrow
Photo Copyright Keith Carlson

General Services:
ParkingNo RestroomsNo PhoneNo BoardwalkNo CampgroundNo Picnic AreaNo Observation AreaNo Visitor CenterNo Interpretive Material AvailableNo Boat RampNo ConcessionsHiking TrailsHuntingFishingNo Water SportsNo OHV/ATVs AllowedHorseback 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?

other Graph illustrating 15% 15%
riverine riparian Graph illustrating 15% 15%
sage/shrub Graph illustrating 70% 70%

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 ALL
Shorebirds N N N N N N N N N N N N
Songbirds N N Y Y Y Y Y Y Y Y N N AM
Upland Birds Y Y Y Y Y Y Y Y Y Y Y Y ALL
Waterbirds N N Y Y Y Y Y Y Y Y Y N ALL
Waterfowl N N N N N N N N N N N N
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.

    Grouse and TurkeyHawks and EaglesSparrows and alliesWood Warblers


    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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