The Vermont Department of Fish and Wildlife wants to hear from people who spot bats outside this winter.
Biologists say reports of sick bats have been coming in most recently from the Johnson area.
Officials are trying to track the disease called white nose syndrome that has killed hundreds of thousands of bats in Vermont and other states over the last several years.
Vermont wildlife Biologist Scott Darling says one of the symptoms is when afflicted bats fly out of the caves where they hibernate during the winter.
Darling says people living near some caves or mines are finding dead bats and seeing bats flying during the day.
Scientists are still trying to learn the cause of white nose so they can find a way to stop its spread.