image of a cluster of big brown bats

Bats in Wisconsin

Wisconsin has eight species of bats, all of which are insectivorous and use echolocation to navigate and capture prey. Four species are known as the cave bats and hibernate in caves and mines throughout the winter. The cave bats are all susceptible to the devastating bat disease white-nose syndrome. The other four are known as tree bats, and these bats migrate south to warmer climates during winter. General Wisconsin bats information

Bats are important consumers for agricultural, forestry and human pest insects. It is estimated that bats in Wisconsin save farmers up to $658 million every year in the form of pest control services.

image of a hibernating northern long-eared bat
Northern long-eared bat hibernating in a cave

This site is produced in conjunction with the Wisconsin Aquatic and Terrestrial Resources Inventory and sponsored by the Wisconsin Department of Natural Resources. The information presented on this site is subject to the Wisconsin Department of Natural Resources' Legal Notices, Disclaimers, and Terms of Use.