![]() Since young bats are naked and blind, mothers leave them behind each night to seek food and water, returning later in the night to nurse. Bats are mammals and often form maternal colonies, a mother and her one or two young hanging together with dozens of other mothers and young. Third, August and September are the best time to do the exclusion. Blocking those air currents is the key to successful bat exclusion. Any spaces-say, your attic and a bedroom-that have different temperatures and are connected by a crack or hole, automatically have airflow between them. Blocking entrances during the day only guarantees more severe problems, increasing the likelihood that they will come down through the walls in search of a way out or die in the house, causing a different set of problems for the homeowner. Thus, exclusion activities must be done after they've emerged, NOT during the daytime. They emerge from their roosts at dusk each evening, searching for food and water. What you need to know about the bats sharing your homeįirst, bats are nocturnal. Understanding some bat habits is the key to successful exclusion. Thus, excluding bats from buildings is the only way to deal with them. ![]() While homeowners are allowed to protect their property, repellents are largely ineffective, including those expensive "sonic" or "ultrasonic" devices and the relatively inexpensive mothballs. Like almost all other animal species, Iowa law protects bats. We just don't want to share their living space with them! Click here to learn more about Iowa's bats and the challenges they face. We want them flying around outside gobbling mosquitoes, crop-damaging insects, and others. Bats are extremely valuable in insect control and a welcome and often misunderstood part of Iowa's natural environment. ![]()
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