Bats Inside Your Home?

The 2 most common structural bats in New England are the little brown and big brown bats. The presence of bats can be detected in several ways. At dusk, when bats leave roosts to feed, they may be seen exiting through eaves, vents or from behind shutters or siding. Noise from large colonies may also announce their presence. Droppings and dark brown stains may appear near eaves and beneath entrance holes and roosts. Bat droppings (guano) are easily crushed, revealing shiny bits of undigested insects. They are never white or chalky in appearance, as are the droppings of birds.

The 2 most common bats involved in nuisance complaints are the little brown bat and the big brown bat. The little brown bat ranges from 3.1 to 3.7 inches in length and has a wingspan of 8.6 to 10.5 inches. Big brown bats range from 4.1 to 4.8 inches in length, with a wingspan of 12.1 to 12.9 inches. Big brown bats can readily be distinguished from little brown bats in flight by their larger size, slow wing beats and audible chatter.

Most colonies of bats are small and often remain unnoticed for many years. Large colonies residing in an attic or wall may become a nuisance because of noise and unsightly guano accumulations. Eviction and exclusion of roosting bats are the only safe, permanent solutions to a nuisance problem. Numerous repellents and techniques may be used in an effort to evict nuisance bats.

Bats are furred, warm-blooded mammals with body lengths of 3 to 6 inches and wingspans ranging from 8 to 16 inches. The bones in a bat’s wing are similar to those in human arms and hands. The fingers are extended and connected by leathery, elastic skin that grows from the sides of a bat’s body. Their thumbs are free from the wing membrane and have claws for grasping.

Bats have good eyesight and rely on vision for long-distance orientation. For short-distance navigation and catching food at night, they use echolocation. This sonar system helps bats, like dolphins, locate targets and background objects from the echoes of ultrasonic sounds. These ultrasonic sounds are given slowly when a bat is foraging and quicken as the bat pursues and captures an insect. Detection, pursuit and capture of an insect take about 1 second.

Bat Eviction Services

Connecticut’s bats are primarily insect eaters. An exception is the hoary bat, which also eats other bats, namely the eastern pipistrelle. Bats are mostly nocturnal and almost always feed “on the wing.” They use their wings, the skin around their tails and their mouths to catch insects in flight. Bats are the only major predators of night-flying insects, making them beneficial to man in several ways. They consume many agricultural pests such as cutworm and corn borer moths, potato beetles and grasshoppers. Mosquitoes and similar “people” pests are eliminated much more efficiently by bats than by birds or expensive bug zappers.

We offer humane solutions to bat control. We do a thorough inspection of all attic spaces and the exterior of the structure. We determine the points of entry the bats are using to access your home and the secondary openings for which the bats may use. Once we have inspected the home we provide a written estimate with our findings and the steps to remove the bats from your residence or business. We will install check valves over the main points of entry and seal all secondary openings allowing the bat to exit and not reenter. Once the bats have all left the structure we return to remove our devices and seal the entry points.