The long-eared myotis is pale brown to strawberry. It is a slow flier and hovers around trees and rocks to catch flies, moths and wasps.
It is primarily a bat of coniferous forests in much of Oregon but may occur far from trees in shrub-steppe regions of the state. It forages in openings in dense forest, between the trees beneath the canopy in ponderosa pine, and over willow-bordered creeks. The species is known to enter dwellings and other buildings through open windows and doors, and to forage on moths therein.
The long-eared myotis often day roosts in buildings, but may use many other natural and man-made structures including caves and mines, bridges, hollow trees and loose bark on trees, and fissures in rock outcrops. This bat is found throughout the state.