I just visited my younger sis a coupla wks ago and she reminded me of the time she and I were fishing with my dad in a jon boat in a Miss. Delta natural lake. We tied up to a stump sticking up about 3 ft. Bats started coming out 1 at a time for what seemed like an hr. Probably at least 15 minutes. Had to have been over a hundred. I didnt realize she is still freaked out about it.