This time of year, an insect pest called a leaf roller is causing brown spots on leaves. I have observed birds feeding on these so I started paying attention. Then, on a dog wood tree, while looking for brown leaves I found what appeared to be a brown leaf. I looked closely and it was not a leaf at all. It was a red bat. Red bats roost in trees and are one of our most common bats. If you are lucky to find one do not disturb it but enjoy it from a far.