There are seven different species of bats in Minnesota. Four of them (Little Brown Myotis, Northern Myotis, Big Brown Bat, and Eastern Pipistrelle) form colonies or groups and can infest your homes or other buildings. Bats mate in fall and winter, giving birth to young in April through July. Young bats grow very vast and can fly within three weeks. Permanent exclusion is the best way to remove bats. First, all entry points must be located and repaired; then one way exclusion devices my be installed, allowing existing bats in your home to leave. Once all bats are gone, exclusion devices are removed and remaining holes repaired. During this inspection A-1 Wildlife Control will determine what species of bats the house has, what type of roost they have, what physical building flaws we need to correct, and when we can schedule the work.