Bats have an off period just like sports teams do. But instead spending the off season conditioning for the upcoming calendar year, bats decide to either hibernate or migrate for the winter. So why is it that bats take the first flight out of town once the cold weather starts to push back? The answer is cold temperatures and food! In order to survive the subfreezing temperatures winter may bring with it, bats need to hibernate or migrate.
Hibernation, or torpor (controlled hypothermia), is the time when bats rest to preserve energy. It can last anywhere from several hours to a couple months, depending on environmental conditions, species, and a lot of other factors. If the hibernacula temperatures are too warm, bats will exert too much energy, which risks their survival.
Because of this, bats locate warm, dark, cozy areas to hibernate in, such as attics, crawl spaces, caves, mines, and bat houses. They usually wake up every couple of weeks to readjust their positions dependent on the temperatures, and they’re back to resting. Hibernation saves them through times of food scarcity, however a few bats don’t even bother, and instead migrate, after warmer temperatures and germs.
Some migrate south for the winter to follow the insects and mind toward hot weather. But once the spring is back and food is abundant, they head back home again. So migration is temporary, and describes both migrations, to and from a location. Kinds of bats that migrate comprise silver-haired bats, eastern red bats, hoary bats, as well as most other tree-roosting bats.
Bats in the Attic
If you’re hearing strange scratching or squeaking noises coming from your ceilings or walls, you might have some hibernating bats in the attic. When the temperatures change, they will adjust their positions to secure warmer or cooler during hibernation. This happens only once every few weeks; and since they hide inside the attic insulation, you cannot see them, so it’s hard to tell without the proper gear and a trained eye.
Have your loft scrutinized for roosting colonies by a certified bat removal company that uses safe and humane methods. They have the resources, training, and tools to control your bat infestation, safely and efficiently. Many companies even offer bat cleanup and minor recovery for bat damages.