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Save the dates! This year's Great Wisconsin Bat Counts will take place May 31-June 2 and July 19-21! Each year, summer bat roost monitors gather information during two statewide bat counts. You can enter your bat roost count data online here!

The Wisconsin Bat Program monitors and manages bat populations in the state.
Much of the data the program collects comes from citizen-scientists,
and the program relies heavily on grants and funding support from Wisconsin citizens.

Sign up to receive email updates from the Wisconsin Bat Program:


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  • Help monitor bats in Wisconsin!
  • Already surveying bats? Log in to submit your data
  • Conducted a summer roost count?Submit your data!
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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.