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Photo credit: Jose Martinez-Fonseca, NAU

Lasionycteris noctivagans

Order: Chiroptera

Suborder: Yangochiroptera

Family: Vespertilionidae

Call characteristics:

Low frequency caller (~30 kHz range)


1/4 - 3/8 oz

(8 - 11g)

Body Length

3 .6 – 4.5 in

(9.2 - 11.5 cm)

There are various sources for bat species range maps including IUCN, NatureServe, U.S. Fish and Wildlife Service ECOS, and the National Atlas of the United States

Silver-haired Bat

Silver-haired Bat

The silver-haired bat has dark, blackish fur, with tips of silver guard hairs and a short and broad snout. This species is found most often in coniferous or mixed coniferous and deciduous forests, with a preference for Old Growth areas. Roosts are almost exclusively in tree cavities, hollows, or under loose bark. Hibernation sites include wood piles and cliff faces, with species occasionally hibernating in the entrances of caves. Primary prey for this bat includes small, soft-bodied insects, such as flies, midges, leafhoppers, moths, mosquitos, beetles, caddisflies, and sometimes spiders. Silver-haired females are known to produce twin pups (baby bats).

Information used to populate this page was obtained from the following sources:
NatureServe Explorer
United States Fish and Wildlife Service Environmental Conservation Online System
Bat Conservation International Bat Profiles
National Atlas of the United States. (2011). North American Bat Ranges, 1830-2008. National Atlas of the United States. Available at:
Taylor, M. 2019. Bats: an illustrated guide to all species. Washington, DC: Smithsonian Books.

Conservation Status

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