Two years ago, I built a couple of bat boxes for bats to sleep in. It was something I had wanted to do anyway, and I was prompted to do it right away when I accidentally disturbed bats living under tarpaper attached to my wall. I was putting on shingles, so they lost access to the tar paper and never seemed interested in the houses I built. Then, last year, the white nose syndrome really hit the maritimes, and it seemed like the houses would be vacant for a long time. Lately, though, Travis and I both noticed what we thought was a bat near the house. Then I identified bat guano under the boxes. Last evening, while I was showing it to Travis, a bat flew Out! It was awesome.