Long-legged Bat (Myotis volans)

Long-legged Bat


  • Adult total body length can range from 8.7 to 10 centimetres (about 3 to 4 inches).
  • Wingspan can range from 25 to 27 centimetres (9 ¾ to 11 inches).


  • Distinguishing features on the long-legged bat (sometimes called the long-legged myotis) include:
    • Thick hair extending on the underside of the wing to a line from the elbow to the knee
    • The presence of a keeled calcar (a small bone extending laterally from the ankle)
  • Is common throughout western North America.
Natural History


  • In the United States, they roost in buildings, rock crevices, and trees.
  • Many nursery colonies are in trees and may consist of hundreds of individuals. It is not known where the majority of these bats hibernate.
  • Long-legged bats have been collected repeatedly at Cadomin Cave near Cadomin, Alberta. They use the cave as a swarming site in August and September and a few individuals also hibernate there. Long-legged bats may be quite tolerant of cold.
Conservation and Management


The long-legged bat is classified as Undetermined in the current General Status of Alberta Wild Species report. See:


  • There is a lack of data concerning this species. Little is known about the habits of long-legged bats in Alberta.
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Updated: April 30, 2009