Southern big-eared brown bat
The southern big-eared brown bat is a species of bat from the family Vespertilionidae. Although current taxonomy treats the southern big-eared brown bat as a separate species, it is often treated as a subspecies of the small big-eared brown bat. It lives in the forests of southern Argentina and Chile; though the population of the bat in the southern part of its habitat is low, there are no major concerns to justify anything lower than a Least Concern rating in the IUCN Red List. There is some habitat destruction, as well as trouble with beavers in Tierra del Fuego.
Histiotus magellanicus occasionally use cavities in standing dead trees or large living trees in decays as roosting sites.