Page 30 - Bats of Oklahoma Field Guide
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Western Big-eared Bat
(Corynorhinus townsendii pallescens)
Subspecies of the Townsend's big-eared bat.
Wingspan: 12 – 13 inches. BCI
Total Length: 3.5 – 4.5 inches.
Color: Pale brown to nearly black above, paler below.
Over-Wintering Behavior: Hibernates.
Preferred Daytime Roost: Caves, rarely buildings.
Evening Flight Time: An hour after sunset.
Feeding/Flying Behavior: Has a characteristic “head
down” appearance because its ears extend directly
out in front of the head.
Pup Development Period: Late May to late July.
In Hand: The large ears are over 1 inch long. There is a lump on each side of the nose.
Cool Fact: During hibernation, the Western big-eared and Ozark big-eared bats will
roll up their ears.
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