Bat house as summer and winter quarters. If you want to do something for the protection of native bats, you can provide shelter for these flying artists with the bat house. The box made of untreated wood features a landing board with grooves for grip, and the opening of the box is narrow enough to keep predators like martens at a distance from the animals. Whether in summer for raising young bats or for hibernation from November to March, the bat box always offers bats a place to stay.