I imagine some people find Bats intriguing, and sure when I am watching a nature show they can be. Having them live on or in my house is a whole other story. Nocturnal animals, bats can be found nesting behind window shutters or inside attics. They like to attach themselves to the walls of porches and patios, near outside lighting, waiting for a meal of flying insects. If you find oval shaped droppings stuck to the stucco wall in these outside areas, they were left by bats.