The big brown bat is the Adirondack’s largest bat; only the hoary bat is larger. The long, lustrous fur is brown. The ears, wing and tail membranes are black. Total length is 105-123 mm (4.1-4.8 in).

Both the little brown and big brown bat have brown fur and dark brown wings, feet, and face. As the name implies, the little ...

This is the largest of all Adirondack bats ... to yellowish brown. The short, rounded ears are tan with black edges. The throat is yellowish to tan. Wrist and shoulder patches are whitish. The ...

According to the National Park Service, white-nose syndrome is a disease that creates a visible white fungal growth on infected bats’ muzzles and wings ... The big brown bat is one of the ...