The Hoary Bat (Aerorestes cinereus) is a bat species in the vesper bat family that lives mostly lives alone on trees; occasionally they occupy caves with other bats. Their preferred habitat is coniferous forests, but the species will hunt over open areas or lakes, and moths make the majority of their diet. While the Hoary Bat is not threatened or endangered, they suffer mortality from wind turbines, and most bat deaths occur during migration in the spring and fall. The Hoary Bat’s coat is dense and dark brown, and the white tips of the hairs give the species its ‘hoary’ appearance.