I decided to use a couple. You can install bat houses year-roun wherever you live (weather permitting), but getting houses up in preparation for locally hibernating or returning migrating. Putting up a bat roosting box can help replace lost or degraded habitat that has been contributing to the decline of bat populations throughout North America.
Make sure the interior wood is sufficiently rough for the bats to hang on. There are some things you should consider before installing your bat house.
Bats are attracted to warm. Install bat houses only in isolated areas. Some bats live in colonies that include tens of thousands of individuals. In Nebraska, the big brown bat (Eptesicus fuscus).