Fascinating and beneficial, the bat is the only true flying mammal. All though several species inhabit Maryland, the little brown bat is the most common. Little brown bats have a wingspan of approx. 9-11 inches and body that is approx. 3 inches long. They can be dark brown, tan, or reddish brown. Common roosting area include the slats of vents, soffits, or attics. All bats are nocturnal and you will hear constant rustling and high pitch vocalizations throughout the night.
Bats can carry several diseases including rabies. Bat feces (if it accumulates) can harbor the fungus that causes Histoplasmosis, a respiratory disease that can sometimes be fatal in humans. Exclusion and colony relocation are the only legal methods for resolving bat issues. Because of their extraordinary homing instincts, releasing them a few miles away will not work. Bat exclusion work must be done with special care and must include: window shutters and spaces between soffits and walls. Often large amounts of bat feces must be removed and then the area should be sprayed or fumigated for insect parasites. The bat bug, a close relative to the infamous bed bug, is a parasite of bats. Once the bats are removed, the bat bugs may attack humans.