An evening bat was discovered by a home owner after she opened a summer umbrella and found her roosting inside. She appeared to be healthy with no pups, so the finder gave us a call for assistance on what to do next. Evening bats are notorious for roosting in the folds of umbrellas and feel very safe there. We convinced the finder to allow the evening bat to stay as long as possible, and if she does need to open the umbrella then to do it after dark so the bat will have a chance to safely fly away finder gave us a call for assistance on what to do next. Evening bats are notorious for roosting in the folds of umbrellas and feel very safe there. We convinced the finder to allow the evening bat to stay as long as possible, and if she does need to open the umbrella then to do it after dark so the bat will have a chance to safely fly away.