Bat - Wildlife


Appearance

There are 7 common species of bat in Fairfax County: Big brown bat, Eastern pipistrelle, Eastern red bat, Hoary bat, Little brown bat, Northern myotis, and Silver-haired bat.

Bat species found in Fairfax County range in size from wingspans less than 9 inches (Little brown bat) to over 15 inches (Hoary bat). Body color can range from gray to dark brown, depending on species.

There are 16 species of bat in Virginia. (More species information) 

Behavior

All species of bat in Fairfax County are nocturnal. Most species are communal roosters and live in large colonies. All species hibernate in winter. Bats establish large maternity colonies and generally give birth to a single offspring.

Diet

All species in Fairfax County are insectivorous. These bats depend on echolocation for direction and orientation when in flight.

Habitat

Most species aggregate in small caves, rock crevices, tree hollows, or under loose tree bark.Some colonies will opportunistically roost in attics, basements, barns or other locations with small openings to enter from the outside.

 


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