Director Bill Mueller and board member Robert Holzrichter participate in acoustic surveys as part of the Wisconsin Department of Natural Resources’ Wisconsin Bat Program.Using devices that detect bats’ ultrasonic echolocation calls, they and other surveyors record bat activity while driving transects in diverse regions of the state.

On a state-wide basis, according to the DNR's Wisconsin Bat News, "night-time research by Wisconsin conservation biologists is helping unlock the summer habitat secrets of several bat species threatened by white-nose syndrome, including the state's smallest bat, the eastern pipistrelle, or "pip" for short.

Bat Survey - 2018