They are also the animals most immediately beneficial to humans. In the United States there are 44 species of bats. Unlike the bats you've seen in horror movies, native bats are tiny. They range in weight from 3 grams to 35 grams. Colonial bats are more likely to inhabit a bat house.
Bats are very shy creatures.
Like most wild animals, they avoid contact with humans and go about the business of eating, reproducing, and avoiding predators. Bats are nocturnal, resting during the day and hunting insects at night. Nearly all bats that live in the United States feed on insects. They eat night-flying insects that destroy our crops, and those that make our lives miserable by biting us. Bats are a natural alternative to toxic chemicals which endanger our personal and environmental well-being.