Instructions
Find the spot that they are roosting. Bats are known for being good at remaining unseen, so you'll have to perform a little detective work. Look at openings within the barn while also searching for bat droppings, which have a dark pellet-like appearance.
Consider the timing of getting rid of the bats. You may run into a problem during the summer months since there are likely to be many baby bats that are still unable to fly.
Wait until the late evening hours to get rid of the bats in your barn. At this time, the bats will be out feeding and away from the barn. Secure all openings of your barn in order to prevent bats from reentering. Place netting or screens over all openings that bats can sneak through in your barn.
Consider an alternative spot for the bats to roost. If you are still considered about bats infiltrating another part of your property, you can set up bat houses. Heath manufactures a cedar bat house that can be mounted to a tree, building or pole. The bats will use the houses instead of your barn.
How to Remove Bats From Barns
Bats can prove to be a real annoyance if they choose to roost in your barn. Bats choose to roost in a barn for several reasons. They may need a spot to hibernate during the colder months or need to place to set up a breeding colony. Not only will bats leave a mess behind with their droppings, they can also be a carrier of rabies.