![]() ![]() Since about 1975, their population has declined by about 50%. During winter, however, they cluster together and hibernate in only a few caves. Indiana bats spend the summer living throughout the eastern United States. Unlike other common bats with brown hair and black lips, Indiana bats have brown hair and pink lips, which is helpful for identification. They can have fur from black to chestnut with a light gray to cinnamon belly. Indiana bats typically live 5 to 9 years, but some have reached 12 years of age. The size of the feet, the length of the toe hairs, and the presence of a keel on the calcar are characteristics used to differentiate the Indiana bat from other bats. These bats are very difficult to distinguish from other species, especially the more common little brown bat ( Myotis lucifugus), unless examined closely. The length of the Indiana bat's head to the body is from 4.1 to 4.9 cm. It has had serious population decline, estimated to be more than 50% over the past 10 years, based on direct observation and a decline on its extent of occurrence. The Indiana bat is listed as an endangered species by the U.S. As an insectivore, the bat eats both terrestrial and aquatic flying insects, such as moths, beetles, mosquitoes, and midges. It is common in old-growth forest and in agricultural land, mainly in forest, crop fields, and grasslands. Indiana bats live in hardwood and hardwood-pine forests. It is similar in appearance to the more common little brown bat, but is distinguished by its feet size, toe hair length, pink lips, and a keel on the calcar. ![]() The Indiana bat is grey, black, or chestnut in color and is 1.2–2.0 in long and weighs 4.5–9.5 g (0.16–0.34 oz). states and is listed as an endangered species. It lives primarily in Southern and Midwestern U.S. The Indiana bat ( Myotis sodalis) is a medium-sized mouse-eared bat native to North America. ![]()
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