We've had a bat house in our yard for almost four years, but no occupants until this year. They do a great job keeping the bugs away. I set up a camcorder to see how many were living there. This video shows them leaving for their evening feeding. In a little over 10 minutes (compressed here) we counted 45 bats in a house that measures about 12x17 inches.
how high do you have it hanging?
dirtyolive 6 months ago
@dirtyolive It's about 30 feet high.
niccomm 6 months ago