How to get rid of bats and save your sanity Try a bat removal device or repellent. A bat excluder works very well if you know where bats enter. When in doubt, call a professional. To remove them, identify their entry and exit points, making sure not to seal them while the bats are inside.
Killing them is both inhumane and will create an uninhabitable environment due to the smell of a colony of decaying bats. Bats don't make holes to enter buildings; they use the entry points that we leave open. Small openings or narrow gaps at the top of houses allow bats to enter. Ecolocation can direct bats directly to their favorite entry points, so you'll want to place a bat house as close as possible to the old “bat door” as a powerful deterrent.
After excluding bats from the attic or other resting place, you will need to treat the site with a residual insecticide. The devices used will remain in place for a few more days if inclement weather and bats remain inside before being removed and sealing the entry point. Bats can also enter under loose doors, around windows and through holes around utility ducts and vents. Over time, a bat colony in the attic will produce excrement that can cause structural damage and have a bad smell, and can cause the growth of a fungus that causes respiratory problems.
Be sure to place the staples no more than an inch apart, so the bat can't crawl under the sheet and get stuck. Males usually sleep individually, but female brown bats of both sizes form colonies in attics or barns when they prepare to give birth (usually in June). Small brown bats (Myotis lucifugus) have a wingspan of approximately 8 inches and weigh less than half an ounce. Therefore, the colony size approximately doubles at birth, and when baby bats start flying, twice as many bats are noticeable.
Because pesticides and the killing of bats are illegal, pest control companies use a process called exclusion. While bats can help the environment and even devour other pests, they shouldn't be welcome indoors. When your bat problems are over, you'll need to restore areas damaged by bats or the removal process. Bats and many other animals, such as flying squirrels, gray squirrels, starlings, screeching owls, forest ducks and raccoons, frequently enter homes through chimneys.
Bat extraction should not be carried out when there are offspring that could be left in the chicken coop, usually from May to mid-August. As a measure to ensure that bats don't re-enter your home, many companies use metal cloth together with putty.