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As Fall approaches, big brown bats start to migrate to their hibernating areas. It might surprise you that this migration can be a very short distance. Sometimes this area is the same home that they raised their young all summer, other times they move to a more suitable home in a different neighborhood.

Cool nights with a lower food source is the primary driving force that starts the migration. Big Brown bats do not need to travel far, since this species prefers to hibernate above ground in homes. They are lazy, why spend their precious energy (fat reserves) flying a long distance - when there are plenty of local hibernation areas nearby. Fall Big Brown Bats are healthy, plump and ready to sleep the winter away.

Their activity tends to slow down during the month of October, but they have been known to fly in November during a warm up in the weather.

Why do Big Brown bats hibernate in attics?
Attics that are around 35-40 degrees are ideal hibernation areas, because they allow the bats to reduce their metabolic processes for hibernation, but do not cause them to freeze.

If you have signs of bat activity in your attic, then you need to have a bat exclusion completed. Time is of the essence. Once the bats begin their hibernation, then they will be inside the attic until Spring.

Propestmen of Ohio, Inc.
P.O. Box 874, Grove City, OH 43123
(614) 344-4278

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Bat Removal & Control

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