when i lived in my frat house during the summer of 2010, there were plenty of bats.
we agreed to paint the interior rooms in exchange for free board. the rooms were all disasters. sheets and clothes everywhere. one afternoon i was painting and moved one of the sheets and yep, there was a bat under it quivering. very unsettling.
then one night there was a bat (could have been the same one?) flying around the hallways. we trapped it in a wicker cornucopia and let it out outside.