![]() We have more than 30 years of experience managing bats in structures and our exclusion work comes with a 7-year warranty. Call Colonial Pest and have our exclusion pros do a thorough inspection for potential bat entrances. If you’ve had a problem with bats roosting in your home in the past and want to keep that from happening again, bat exclusion methods (bat-proofing) is the answer. Or, they may eventually die in the attic if they can’t get out to find food. ![]() If bats’ entrances are blocked, they will search for new openings and can end up in living areas. Bats get into attics by squeezing their way through roof vents, holes along the edges of the roof, and gaps between the soffits and the. To bats, they are an ideal place to roost. Attics, like caves and tree hollows, are dark and above ground. After mid-August (and before May), bat removal and bat-proofing to seal openings is generally allowed, although the dates may differ slightly from state to state.īat-proofing of your home can be done during winter months as long as there are no bats hibernating in your attic (see Batproof Your Home Now to Prevent Summer Roosts.). Bats have been known to hibernate in attics, spending their winters where they can be safe and warm. By mid-August, though, young bats are generally flying and able to fend for themselves. It is illegal to harass them or remove them from their nesting sites while there may be unweaned young in the colony. Know Local Regulations Before You “Bat-proof”īats are beneficial mammals that are protected by the federal government. In some cases, that nursery site may be the same location where they spent the winter (your attic?). I have a bat hibernating in my attic, what should I do One species of bat in Wisconsin, the big brown bat, is known to form very small colonies that hibernate in buildings in winter. Bats then often return to the same nursery sites that they used the year before to have their young. They “wake up” and leave their winter roosts between March and mid-April. In general though, bats in our area hibernate beginning in October or November and remain relatively inactive during winter months. ![]() Unfortunately, these winter colonies are increasingly infected with a fungal disease, White-nose Syndrome, that is killing bats in huge numbers (see Bats Continue to Die By the Millions From Killer Disease). We assume bats will just be roosting from the rafters when we peek up in our attic. Little brown bats are more likely to migrate to join large winter colonies in caves or mines as far away as Vermont or New York. If you see bats flying about on warm, winter days, they are most likely big brown bats. The big brown bat, in particular, often remains to winter in our region. Here in Massachusetts and New Hampshire, we have two different bats that will establish roosts in attics or sheds: the big brown bat and the little brown bat. Some migrate to warmer southern regions, some hibernate in caves, mines, or sometimes houses (see Signs That You Might Have Bats in Your Attic). What Do Bats Do in the Winter? By Chris Williams on February 15, 2016.ĭifferent bat species have different strategies for surviving northern winters. ![]()
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