A bat flew by my nose as I was sitting on the patio last evening. The swooshing flutter startled me from my book. Bats were flying laps around our valley, eating their way through clouds of insects as the sun started to go down. It was a pleasant evening and we weren’t bothered by mosquitoes. The rough board-on-board siding on our shop building has become a giant bat house. Bats disperse from their winter hibernation caves in May to give birth, raise their young and to forage.