How Fall Signals a Change in bat Behavior
Bat behavior in the fall may, in fact, lead to intrusion in your Milwaukee home. This is because while most bat species head for caves and abandoned mines and buildings for hibernation, some bat species, the big brown bat to be more specific, move to their hibernating areas as fall approaches. This affects homeowners because the big brown bat likes to hibernate in buildings. Bats have a tendency to return to the locations they used for nursing so if that location was your home, you can expect them to attempt to return at hibernation time. Other bats may just be approaching your home because of the convenience and safety it offers.Bat Fall Activity - The Breakdown
In September at the very beginning of fall, bats sense the change in climate and start to prepare for their annual winter hibernation. At this time adult bats as well as the babies born a few months ago during the birthing season, fly around and feeding voraciously in order to build up fat stores for the winter. By the time October rolls around, the bat activity in your area will lessen as they gradually slip into hibernation for the winter and depending on how cold the climate is, bat activity may stop altogether as they drift into hibernation. Another reason for them to get less active is the decline in insect population. As insects migrate to find warmer climate, there is less food available and so the feeding frenzy is forced to slow down and eventually stop. But you may still spot the occasional bat flying around up to November, especially if the weather warms up enough. When bats choose human homes for hibernation, they typically head for the attic and they have a good reason for this. Attics provide the ideal temperature (35-40F) for comfortable hibernation. At this temperature, bats can reduce their metabolic processes without freezing. On top of it all, attics provide good protection from predators.What to do About Bats in the Fall
