Big brown bats occur statewide and often roost in buildings, tree cavities, and crevices near feeding habitat. At Lake Thunderbird, Salt Plains, and other waterside sites, watch the open sky shortly after sunset for broad-winged bats making steady passes after beetles and other insects.
Oklahoma records cover the full year, with an unusual November–December concentration that may reflect survey effort as much as activity. Never handle a grounded bat; contact a wildlife professional if one is found indoors or acting abnormally.
Full species profile
