To see the entire big brown bat library of images, click the link below. Big brown bats are found in most areas of the United States and are very common bats. They have 1 to 2 pups each year during the early summer. Big brown bats can be found roosting in bat houses. Photographs will be emailed to you within 2 working days. The images are 300 dpi, 5 by 7, in jpeg format, any anywhere from 2 to 5 megs. If you would like any other size or format feel free to contact us. We are always happy to help!