Field Guide

Nutria are large aquatic rodents native to South America. They were brought to the U.S. for the fur market. In Missouri, nutria are sometimes trapped in the southeastern part of the state.

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.

The American beaver is a semiaquatic rodent distinguished by its large size, webbed hind feet, and large, horizontally flattened tail covered with leathery scales.

The red fox is doglike, with a long, pointed muzzle; large, pointed ears that are usually held erect and forward; moderately long legs; and a long, bushy tail.

The American mink is a semiaquatic predator and a member of the weasel family. It is famous for its durable, soft, valuable fur.

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.

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.

The North American river otter was once nearly eliminated in Missouri, but thanks to restoration efforts, these powerful swimmers are once again found throughout most of the state.

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.

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.