Page 10 - Bats of Oklahoma Field Guide
P. 10
Big Free-tailed Bat
(Nyctinomops macrotis)
Wingspan: 17 – 18 inches.
Total Length: 5.5 – 6.25 inches. BCI
Color: Glossy, light reddish-brown to
black fur.
Over-Wintering Behavior: Hibernation/
migration habits unknown in Oklahoma.
Preferred Daytime Roost: Rock crevices in
high places such as cliffs and canyon walls.
Evening Flight Time: Emerges after sunset.
Feeding/Flying Behavior: Fast and strong
flier, but not maneuverable.
Pup Development Period: June to
mid-August.
In Hand: Large, rounded ears are joined at the base and appear to point forward.
Cool Fact: The big free-tailed bat needs to drop at least 8 feet to gain flight.
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2013 Bat Field Guide.indd 10 3/21/13 2:35 PM
