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Townsend's big-eared bat roosting in a mine

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Uploaded on Jul 14, 2011

This Bat Conservation International video shows a Townsend's big-eared bat roosting in the main shaft of a complex abandoned mine in western Arizona. The bat is probably a male or non-reproductive female, since a maternity colony of more than 500 bats was located farther back in the mine. The bat's large ears are curled back, a very common posture when roosting or hibernating. You can also see two bumps located along the bats nose area. These are likely used to scent-mark roost sites or, possibly, the bat's young. This mine contains the largest known maternity colony of Townsend's big-eared bats in Arizona. Bat Conservation International and the U.S. Bureau of Land Management plan to install a bat-friendly gate to protect the colony in the fall of 2011, after the bats have left for the year. We normally do not linger long around bats to avoid disturbing them, and we don't handle them unless we must.

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