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Photo credit: Bureau of Reclamation

Lasiurus frantzii

Order: Chiroptera

Suborder: Yangochiroptera

Family: Vespertilionidae

Call characteristics:

High frequency caller (36-54 kHz)


  1/3 - 1/2 oz

(10 - 15 g)

Body Length

3 9/10 - 4 1/3 in

(10 – 11 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

Desert Red Bat

Desert Red Bat

The desert red bat has red fur, bicolored, with white tips; males often appearing more vibrantly pigmented than females. The species is slightly smaller than the closely related eastern red bat. Desert red bats are often found in riparian habitats, particularly those associated with cottonwood trees. During the active season it roosts in the foliage of trees and shrubs; however, little is known about the species' winter activity or roosting sites. Favorite foods include beetles, flies, and moths. Mothers typically birth twins but can deliver up to 5 pups in a litter! In the wild desert red bats may survive to over 12 years in age.

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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