Field Guide

Mammals

Showing 1 - 10 of 24 results
Media
Photo of white tailed buck
Species Types
Scientific Name
Odocoileus virginianus
Description
In summer, white-tailed deer are reddish-brown to tan above; in winter, they are grayish. The throat and belly are white. This common Missouri deer is named for the bright white of its flaglike tail.
Media
Image of a feral hog
Species Types
Scientific Name
Sus scrofa
Description
Feral hogs could cost Missouri millions of dollars in agricultural, environmental, and property damage. As they root and wallow, they plow the soil to depths of 2–8 inches — sometimes for many acres! And this is just the beginning of the trouble they can cause to humans, livestock, and the environment.
Media
Photo of a deer mouse in its nest made of dry grasses
Species Types
Scientific Name
Peromyscus maniculatus
Description
The deer mouse is found statewide, usually in open habitats like fields and grasslands. It and our other three species of Peromyscus mice look a lot alike.
Media
Image of woodchuck (groundhog)
Species Types
Scientific Name
Marmota monax
Description
One of the best-known wild mammals in Missouri, the woodchuck, or groundhog, is a rodent in the squirrel family. The name “woodchuck” is possibly derived from an Indian name for this species.
Media
Image of eastern cottontail
Species Types
Scientific Name
Sylvilagus floridanus
Description
The eastern cottontail is a rabbit with a perfect name. Its tail, when raised, has a conspicuously white undersurface, resembling a fluff of cotton.
Media
Photo of long-tailed weasel
Species Types
Scientific Name
Mustela frenata
Description
Long-tailed weasels are small but voracious predators. They are rare in our state but are most common in the south-central and southwestern portions. In summer, they are brown with yellow beneath. In winter their fur is paler or white. The tail has a black tip.
Media
Photo of least weasel
Species Types
Scientific Name
Mustela nivalis
Description
This mouse-sized weasel is found only in Missouri’s northern counties, and abundance varies locally and seasonally, depending on fluctuating rodent numbers—their favorite food.
Media
Image of southern flying squirrel
Species Types
Scientific Name
Glaucomys volans
Description
Flying squirrels don’t actually fly, but they are expert hang gliders. Instead of running around on the ground, they climb to the top of a tall tree, launch into the air, glide downward to the bottom of another tree and repeat the process to get where they’re going.
Media
Image of an eastern chipmunk
Species Types
Scientific Name
Tamias striatus
Description
Chipmunks are sleek, attractive, active ground-dwelling squirrels. They live in tunnels but are generally out during the day, making them one of the few mammals that people can enjoy watching.
Media
Image of a gray squirrel
Species Types
Scientific Name
Sciurus carolinensis and Sciurus niger
Description
The eastern gray squirrel and eastern fox squirrel are both very common in Missouri. Their names describe their general coat color: the first is grayish, the other a foxy red.
See Also

About Mammals in Missouri

More than 70 species of wild mammals live in Missouri: opossums; shrews and moles; bats; rabbits; woodchuck, squirrels, beaver, mice, voles, and other rodents; coyote, foxes, bear, raccoon, weasels, otter, mink, skunks, bobcat, and other carnivores; deer and elk; and more. Most of us recognize mammals easily — they have fur, are warm-blooded, nurse their young, and breathe air.