There is a wide variety of bat species, though some are rare. Bats are not flying mice, or rodents. They are more closely related to shrews or primates. Though bats often get a bad reputation, they are not aggressive, and are often very beneficial in eliminating insects. Bats are not blind. They can see just fine, but they also use echolocation as ameans of navigating complex flight and finding insects on the wing. A bat's wings are essentially the same as our arms and hands, thus the scientific name Chiroptera or handwing. The bones of the hand and finger are elongated and serve to support and move the wing. The hind limbs of bats are modified for landing and hanging upside-down.

Bats become a nuisance when they roost in large numbers in human dwellings. The rapid and smelly accumulation of guano (droppings) is , and serves as a fertile breeding ground for a fungal disease called Histoplasmosis, which is transferable to humans who breathe in the fungal spores. Bats are also known to carry rabies, a viral disease that causes progressive paralysis and death in mammals, including humans. People are most likely to encounter nuisance bats when a roosting colony takes up residence in a building. Attics often make excellent habitat, as do barns. Bats need only a half inch or less of space to crawl through in order to enter a building. Once inside, if the habitat is good, the colony grows until the homeowner notices the bats flying out of the building, notices the droppings in the attic, chimney, outside, or even basement (when the droppings fall down the walls). Sometimes a bat will get lost and find its way out of the attic and into the living area. Occasionally a transient bay may also fly into a house. Getting rid of bats requires experience. The bat removal system ensures that the colony will no longer use your home or business as a roosting area, and that no bats can get back in. We care for the welfare of these beneficial creatures, as do many environmental agencies, so we do not aim to kill any bats. A pro merely exclude them from the premises and make sure they can't get back in, while thoroughly cleaning the biohazardous droppings that they leave behind. Experience counts when working on bat jobs, and it takes a skilled eye to get the job done right the first time.