The Silver-haired Bat (Lasionycteris noctivagans) is a species of vesper bat in the family Vespertilionidae and the only member of the genus Lasionycteris. Silver-Haired bats are medium sized , densely furred nearly black, with silvery-tipped hairs on back, giving frosted appearance. Silver Hired Bats weigh around 8-12 g and its total length is around 100 mm on average, its tail being 40 mm
Lasionycteris noctivagans is found in Bermuda, Canada, Mexico, and the United States. They are the most common bat in forested areas in the United States. Silver-haired bats are also known as Silverwings.