If you have bats in your attic, you might notice them flying out of your attic at dusk. Observe from a distance! Watch where the bats are exiting from but avoid close contact. Bats are nocturnal, so you’ll typically see them leaving your home around dusk as they go out to forage for insects. Look for small openings around your roofline, eaves, vents, or chimney. Bats can squeeze through gaps as small as 3/8 of an inch.
Watch Bats Leaving Attics
Video from Houston and The Woodlands.