Barn owl(Tyto alba) predation on big brown bats(Eptesicus fuscus) in Pennsylvania

摘要

Diet of the Barn Owl, Tyto alba, was determined through examination of pellets collected from a roost site in Port Trevorton, Snyder County, Pennsylvania(40°42'26"N, 76°51 58 W). Remains of a Big Brown Bat, Eptesicus fuscus, were positively identified in one of the 80 pellets from our site. To our knowledge, this is the first documented case of a Barn Owl preying on a bat in Pennsylvania.