Page 17 - Bats of Oklahoma Field Guide
P. 17
Greater Mastiff Bat
(Eumops perotis)
Wingspan: 21 – 23 inches.
Total Length: 6.25 – 7.5 inches.
Color: Brownish to dark gray above and Bruce Taubert
paler below.
Over-Wintering Behavior: Hibernation/migration
habits unknown in Oklahoma.
Preferred Daytime Roost: Unknown in Oklahoma.
Evening Flight Time: Emerges after
complete darkness.
Feeding/Flying Behavior: Fast and strong flier.
Will fly long distances (15 miles) to search
for food.
Pup Development Period: May to September.
In Hand: Large size and rounded ears.
Cool Fact: The greater mastiff bat is the largest bat in the United States.
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2013 Bat Field Guide.indd 17 3/21/13 2:35 PM
