Bats in the Attic in Illinois
The cave regions of southern Illinois and the valleys of the Mississippi and Illinois rivers have ideal natural bat habitats and the highest abundance of bats.
Big brown bats, little brown bats, Northern long-eared myotis and tri-colored bats are all colonial bats. During the winter they roost in mines and caves. During the spring and summer, females will form maternity colonies in the hollow of trees, attics, or little used buildings.
If you find a group of bats in your attic during the spring and summer, tread carefully. At birth a young bat clings to its mother. When the mother feeds each evening, the young bat is left in the attic. If one were to implement bat removal at this time, the young bats would be stranded inside the attic with no way to feed.
After about three weeks, the young can fly and will start feeding on insects, but they will continue to nurse until they are about 1½ months of age.
Once the pups can fly, we can install bat exclusions and a one way valve to get rid of bats in your attic.
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