Take a look at For Cavers on the Service’s website.
Avoid disturbing bats
Stay out of all hibernacula when bats are hibernating (winter).
Report unusual bat behavior to your state natural resource agency, including bats flying during the day when they should be hibernating (December through March) and bats roosting in sunlight on the outside of structures. More difficult to discern is unusual behavior when bats are not hibernating (April through September); however, bats roosting in the sunlight or flying in the middle of the day would be unusual. Bats unable to fly or struggling to get off the ground would also be unusual.
Take care of bats
Minimize disturbance to natural bat habitats around your home (e.g., minimize outdoor lighting, minimize tree clearing, protect streams and wetlands).
Construct homes for bats (see below for directions).
If bats are in your home and you don't want them there, work with your local natural resource agency to exclude or remove them without hurting them after the end of the maternity season (see below for more information). The best time to exclude bats is when they aren’t in your home.
Learn about bats/teach about bats - bats are fascinating creatures and an important part of our environment.
Visit websites for organizations like Bat Conservation International
Attend educational programs or events celebrating bats, e.g.,
Indiana Bat Festival
Bat Fest, Austin, Texas
Some states and organizations sponsor bat emergence counts or other activities. Contact your state natural resource agency or local conservation groups for opportunities.