You know its summer - Bats

Over the last 4-5 years, you know it's summer time because at least 1 bat will get into your house! They're after insects mind you. Still trying to figure out just how they are getting in as they definitely aren't attracted by light. Therrs very little gaps between fans or the ac and the window frame but evidently they squeeze thru them until there's room lights. In fact, it drives them nuts and my cat goes crazy just trying to follow them circling the room as they try to find their way out.