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Fish & Wildlife

Intermountain Grassland

The intermountain grassland is home to a variety of wildlife species. Some of these animals are year-round residents like the western jumping mouse, while others are seasonal visitors such as the grasshopper sparrow that migrates south for the winter. Wildlife species listed on this page were selected because of adaptations that help them survive in an intermountain grassland environment. Click on the images below to view the Animal Field Guide.

Intermountain Grassland Mammals

Mammals adapted to this ecosystem are associated with grasslands and the montane forest. Some make their homes in the grass, such as the meadow vole, while others, such as elk and deer, migrate down to this ecosystem for critical range in the winter.

Elk

Elk

Mountain Lion

Photo of Mountain Lion

Columbian Ground Squirrel

Columbian Ground Squirrel

Grizzly Bear

Grizzly Bear

Long-tailed Weasel

Long-Tailed Weasel

Bighorn Sheep

Bighorn Sheep

Masked Shrew

Masked Shrew
Montane Forest Birds

Birds like the sandhill crane, bald eagle, grasshopper sparrow, Wilson's snipe, bobolink, blue warblers, and osprey live in these grassland and riparian valleys.

Northern Harrier

Northern Harrier

Western Meadowlark

Western Meadowlark

Savannah Sparrow

Savannah Sparrow

Upland Sandpiper

Upland Sandpiper

Sandhill Crane

Sandhill Crane

American Kestrel

American Kestrel

Grasshopper Sparrow

Grasshopper Sparrow

Bald Eagle

Bald Eagle
Montane Forest Herps (Amphibians and Reptiles)

This ecosystem is home to amphibians and reptiles of both the grasslands and montane forest. Terrestrial garter snakes, spotted frogs, western toads, and painted turtles can be found here. The leopard frog once ranged throughout this ecosystem, but today this species can only be found east of the continental divide.

Terrestrial Gartersnake

Terrestrial Gartersnake

Spadefoot Toad

Spadefoot Toad
Montane Forest Fish

The large rivers and their tributaries of the intermountain grassland support a cold-water fishery. Although these are some of the nation's most famous trout rivers, many other native fish species take advantage of these highly productive waters.

Rocky Mountain Sculpin

Mottled Sculpin

Longnose Sucker

Longnose Sucker

Burbot

Burbot

Mountain Whitefish

Mountain Whitefish