Field Guide

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.

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.

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.

Eastern moles are plush-furred, large-handed critters infamous for disfiguring lawns as they tunnel belowground hunting for grubs and cutworms — many of which are also dreaded by landscapers!

The Virginia opossum is North America's only marsupial. Its life history, biology, and habits make this nocturnal mammal worthy of appreciation. What other mammal in our state can hang by its tail, play dead, and carry its young in a pouch?

Skunks are omnivorous mammals notorious for their ability to discharge an obnoxious scent when provoked, and the striped skunk is the most commonly encountered skunk in our state.

There’s no other animal in Missouri that can be mistaken for an armadillo! In the 1950s, they were not considered residents, but now they are regularly found in the southern half of the state.

The little brown myotis (little brown bat) is one of our most common bats, but populations are declining. White-nose syndrome has taken a heavy toll in northeastern states. This species is now listed as vulnerable across its range.