Primary roosts are most often found at forest edges or in canopy gaps. Alternate roosts are generally located in a shaded portion of the interior forest and occasionally at the forest edge. Most roost trees in a Kentucky study occurred in canopy gaps in oak, oak-hickory, oak-pine, and oak-poplar community types. Roosts found by Kurta and others in an elm-ash-maple forest in Michigan were in a woodland/marsh edge, a lowland hardwood forest, small wetlands, a shrub wetland/cornfield edge, and a small woodlot. Around hibernacula in autumn, Indiana bats tended to choose roost trees on upper slopes and ridges that were exposed to direct sunlight throughout the day.