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Big Brown Bat
Eptesicus fuscus





credit: Calliopejen1


As the name suggests, this is a large brown bat with naked, dark membranes. The tail is enclosed in interfemoral membrane. It has short ears, a keeled calcar, and a forearm length of 39-54mm. They use hollow trees, but are equally common in buildings, including barns and churches. Although hibernacula in caves are common, this species also sometimes hibernates in cold buildings.

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