I put up a bat house two years ago with no success in attracting any bats. This summer I decided that I was going to move it and try another location. Recently while working in my garden I noticed some guano below the bat house. It seems they have finally noticed the house.
For those of you who are still traumatized by bats because of all the Dracula movies, a few cases of rabies, their pointy teeth, and the fact that they hang upside down to sleep, keep in mind that bats don't go around biting people and sucking blood.
One little brown bat will eat a thousand mosquitoes in an hour. As a gardener trying to grow vegetables this summer they are very helpful in controlling insects that will damage my crops. Many of the insects they eat include the tomato horned worm, corn earworm and many kinds of beetles. They save farmers from spending billions of dollars in pesticides.