If you know how dangerous a bat it is when it is around your house, you understand why most people cannot easily face these flying mammals face to face and would rather call wildlife control companies to trap bats. In some areas, bats are very common while in others they are very scarce. There are also some species which like roosting outside houses, such as in a bat house.nnFor the species that live in large colonies, they like larger spaces such as a barn. This means you will not find large colonies of bats in the attic.nnHowever, this does not apply to all kinds of bats because some bats, such as brown bats, will find your house to be the ideal spot make their home. In fact, just a small group of bats will see your house most suitable place to set up their residence.