Mammal Checklist

More than 60 mammals live in Yellowstone, The map shows the most likely places to see the big mammals and the checklist below the map gives more information. Remember what you see will vary with the weather, season, and behavior of the animals. You might see these and other animals in other places in the park, or you might not see any at all. Enjoy looking for and watching wildlife.



Bears, Cats, Dogs, Raccoons, & Weasels

Black Bear forests, meadows 500–650
Grizzly Bear forests, meadows 280–610
Coyote forests, meadows, grasslands common
Gray Wolf forests, meadows >100
Fox meadows occasional
Bobcat forests, meadows may be widespread
Cougar mountains, rocky areas 15–17
Lynx subalpine forests few
Raccoon rivers, cottonwoods rare
Badger sagebrush common
Fisher forests rare, if present
Marten coniferous forests common
Mink riparian forests Occasional
River Otter rivers, lakes, ponds common
Striped Skunk riparian to forest rare
Long-tailed Weasel willows to spruce/fir forests common
Short-tailed Weasel willows to spruce/fir forests common
Wolverine alpine, coniferous forests rare

Hoofed Mammals

Elk (Wapiti) meadows, forests 15,000–25,000
Moose riparian, forests <500
Mule Deer forests, grasslands, shrub lands 2,300–2,500
White-tailed Deer forests, grasslands, shrub lands occasional
Bison meadows, grasslands >3,500
Bighorn Sheep cliffs, mountain slopes 250–275
Mountain Goat alpine meadows, rocky slopes 175–225
Pronghorn sagebrush, grasslands 200–250


Big Brown Bat roost in sheltered areas common
Fringe-tailed bat roost in cliffs, large snags uncommon
Hoary Bat roost in trees uncommon
Little Brown Bat roost in caves, buildings, trees common
Long-eared Bat roost in cliffs, buildings uncommon
Long-legged Bat roost in tree cavities, cliffs, buildings common
Silver-haired bat roost in trees, including snags common
Western small-footed Bat roost in rocky areas, caves rare, if present
Townsend’s Big-eared Bat roost in caves uncommon
Yuma Bat roost in caves, buildings, trees rare, if present




Pikas, Hares, Rabbits

Snowshoe Hare forests, willows common
White-tailed Jackrabbit sagebrush, grasslands common
Desert Cottontail shrub lands common
Mountain Cottontail shrub lands common
Pika rocky slopes common


Dusky Shrew moist meadows, forests common
Masked Shrew moist meadows, forests common
Water Shrew moist meadows, forests common
Preble’s Shrew moist meadows, forests rare, if present
Dwarf Shrew moist meadows, forests rare

Beaver, Squirrels, Gopher, Mice, Porcupine

Beaver ponds, streams 500
Least Chipmunk forests common
Uinta Chipmunk forests common
Yellow Pine Chipmunk forests common
Yellow-bellied Marmot rocky slopes common
Ground Squirrel
forests, rocky slopes common
Northern Flying Squirrel forests occasional
Red Squirrel forests common
Uinta Ground Squirrel sagebrush, meadows common
Northern Pocket Gopher sagebrush, meadows, forests common
Deer Mouse grasslands common
Western Jumping Mouse riparian occasional
Muskrat streams, lakes, ponds common
Heather Vole sagebrush to forests occasional
Long-tailed Vole moist meadows common
Meadow Vole moist meadows common
Montane Vole moist meadows common
Red-backed Vole dense forests common
Water Vole riparian occasional
Bushy-tailed Woodrat rocky slopes common
Porcupine forests, sagebrush, willows common