Field Guide

Gray myotises are difficult to distinguish from other mouse-eared bats. A key identifying feature of the gray myotis is that its wing is attached to the ankle and not at the base of the toes. It’s an endangered species.

The Indiana myotis, or Indiana bat, summers along streams and rivers in north Missouri, raising its young under the bark of certain trees. It is an endangered species.

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.

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.

When you see the black mask and striped tail of this medium-sized mammal, you know you’ve spotted a raccoon. These nocturnal omnivores are clever and adaptive.

The Virginia opossum is North America's only native 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. The striped skunk is the most commonly encountered skunk in our state.

The gray wolf originally ranged throughout Missouri, but with settlement the species was gradually exterminated. While there is no evidence of a breeding population in the state, wolves are listed as a protected species in Missouri, and they occasionally wander into Missouri from northern states.

The common muskrat is one of the most abundant commercial furbearers in Missouri. This semiaquatic rodent has benefited from the construction of thousands of farm ponds throughout the state.

The nutria is a large aquatic rodent native to South America. They were brought to the United States for the fur market. In Missouri, nutria are sometimes trapped in the southeastern part of the state.