Central topics include: 1) seasonal and annual home range and movement patterns, 2) diet composition and food availability, 3) identifying habitats used for foraging roosting, and breeding, The mainland L. cinereus is not listed by the U.S. Hawaiian Hoary Bat Lasirus cinereus semotus / ‘ope‘ape‘a . Females are larger than males. It occurs across the entire state, and is also the most widely distributed bat in the U.S. A large bat with long, thick brownish fur, which is distinctively frosted. Range of little brown bat in Wisconsin. Few bats are as colourful as the Hoary Bat (Lasiurus cinereus) and the Eastern Red Bat (Lasiurus borealis). Fish and Wildlife Service, but the Hawaiian subspecies is listed as endangered. Hoary Bat. of Importance Score: General Description: The little brown bat is a member of the genus Myotis, which is represented by three species in Wisconsin. Hawaiian hoary bats are fast, tenacious hunters that sometimes pursue moths to within six inches of the ground, making longer-distance hearing quite advantageous. This bat weighs between 5.5 and 12.5 g (0.19-0.44 oz), and individual bats’ … J. Alan Clark, Ph.D., associate professor of biological sciences and one of the authors of the study, said the biggest surprise was the presence of three bats— Lasiurus borealis (Eastern Red Bat), L. cinereus (Hoary Bat), and Lasionycteris noctivagans (Silver-Haired Bat), during the winter months—a time when it was assumed they’d have migrated away from the area or begun hibernating. Range and Habitat: This foliage dwelling species has the largest range of any North American bat, and occurs in the tree line of Canada to Guatemala, in South America, and Hawaii. The Hoary Bat is the largest bat species in Tennessee, living primarily in trees. The hoary bat may appear superficially similar to the silver-haired bat (Lasionycteris noctivagans); however, the hoary bat is much larger and lighter in color with grey-tipped yellowish-brown fur and a yellow throat. The ‘ope‘ape‘a weighs 14 to 18 g (0.49 to 0.63 ounces) with a wing span of about 10.5 to 13.5 inches. The hoary bat is a summer resident to the Adirondacks, probably occurring throughout the park, but its relative abundance and distribution are not well known. The bat is nocturnal and feeds on a variety of native and nonnative night-flying insects. Mothers roost in the tree canopy with their pups, which may number up to four in the eastern parts of their range (which is an exceptionally large litter size for bats). In a single meal, this bat can eat up to 40 percent of its weight— the equivalent of a 150-pound human eating 60 pounds of food. Description Lasiurus cinereus is a large and distinctively marked bat with long narrow wings. Hoary Bat (Lasiurus cinereus)Protection Status Notes Nothing is known about the hoary bat's status or population trends. the ESRC “Request for Proposals” and the USFWS 1998 Recovery Plan for the Hawaiian Hoary Bat. The silver-haired bat has pelage that is dark grey underneath and silver-tipped giving it a frosted appearance (Kunz 1982). Moths are the hoary bat's most common prey.