i just love bats. i'd like to know them. when we went into caves we tried to be real quiet and not disturb them. it's always odd to see them in the day exposed like this on the cold cement. i wish i could revive the bat if it's stunned. what if it was just stunned from hitting the glass and then gets too cold and its heart stops. i don't know what i could do. next time i'll call bird collision experts even though it's not a bird but a winged mammal.