Brown Bats In Attic

Check for dark brown stains around your roofline dormers vents and roof trim.

Brown bats in attic. They can also live long lives hopefully not as freeloaders in your space of up to 20 years. Bats can squeeze into tiny cracks so if you see brown staining around even the smallest crevice odds are it is the entry point a colony of bats has claimed as their key to free rental space. How to identify the big brown bat. There are two species of bat that can infest your residence little brown bats and big brown bats.

Big brown bats eptesicus fuscus can grow to be twice the size of little brown bats. Flight at dusk and dawn. The big brown bat is just the larger counterpart to the little brown bat. They adapt well to a variety of.

They have about a 4 body length from nose to tail and longer bat fur that s less uniform than the little brown bat. These bats prefer insects with aquatic life stages so roosts will often be found near water. Little brown bats myotis lucifugus have a wingspan of approximately 8 inches and weigh less than half an ounce. Bats depending on the species tend to reside either in your attic or in your walls.

Males typically roost individually but female brown bats of both sizes form colonies in attics or barns when they are preparing to give birth. Little brown bats will hibernate during the winter months in a cool dark secluded place like an abandoned mine cave or attic. Big brown bats may check out your attic or walls and decide your home or building is a perfect place to hibernate or rest.