Animalia, Chordate, Colubridae, Eukaryota, June, North America, P. vulpinus, Pantheriphis vulpinus, Reptilia, Serpentes, Squamata, US, USA, Wisconsin, bird house, bird's nest, birdhouse, cavity nest, climbed, crawled inside, crawled into a birdhouse, eastern fox snake, eastern foxsnake, enter, entered, entered a cavity nest, entering cavity nest, in bird house, in birdhouse, inside, invade, invading, late spring, look, looking, meal, natural, nature, nestling, nestlings, nonvenomous, north american, northern, northern Wisconsin, northwoods, pine snake, predator, predator behavior, rat snake, search, searching, seeking, seeking food, snake, snake behavior, snake meal, steal, stealing, summer, summer time, summertime, tree swallow, tree swallows, wild, wildlife, young