||Varies in shade from tan to black
||Four legs used for crawling; Front two are used as wings
||Body covered with hair; Two wings and very large ears
||Depending on the species, adult bats average 2 3/16” to 7 ½” (5.5cm - 18.8 cm) in length from nose to end of tail. They have a wingspan of about 6” to 15” (15.2cm - 38 cm).
||All, with the exception of colder regions beyond the limit of tree growth
There are more than 980 species of bats worldwide with about 40
species found in the United States. The three most common species
that enter structures are the little brown bat, the big brown bat
and the Mexican free-tailed bat.
For centuries, bats have been the subject of folklore and myths,
often associated with witchcraft, haunted houses and evil. These
myths still exist today and cause unfounded fear in many
Bats are nocturnal flying mammals that leave their roosts at
dusk to feed and return to secluded dark places just before
daylight. Most species are active during the warmer months and
hibernate and/or migrate for the winter season. However, they do
not fly in rainy or unseasonably cold weather.
Big brown bats:
Female big brown bats form nursery colonies in the spring and are
joined by males in late summer. They leave their roost at
dusk in a slow, fluttering flight to find food. They feed close to
the ground on various insects including beetles, ants, wasps, flies
bats: This species forms nursery colonies in early spring,
then migrates south in autumn and hibernates in irregular clusters
from September through April. They feed on insects, primarily flies
and moths, and alternate their feeding with rest periods during
which time they hang to digest their food.
bat: This species migrates to Mexico for the winter,
usually leaving in late October and returning in March. They feed
on insects, eating up to 1/3 of their body weight each night.
Different bat species living across the United Stated roost in
dark secluded areas of buildings and in naturally protected areas
bats: This species commonly roosts in attics and
church belfries, and behind shutters and loose boards. During
the winter months, colonies travel short distances seeking hollow
trees, rock crevices, drainage pipes, caves, mines and buildings to
hibernate alone or in small groups.
bats: This species roosts in tree cavities and
crevices during the warmer months and seeks shelter in caves and
mines to hibernate.
bats: This species usually lives in huge colonies where the
young are raised. In the southeast and on the west coast, these
bats can be found hiding in structures, but from Texas to Arizona
they seek shelter in caves.
Bats can pose a serious health threat to humans if they are
found inside a structure. Fungi that harbors in bat droppings can
cause the lung disease, histoplasmosis. An accumulation of
droppings should be professionally decontaminated and removed.
A small percentage of bats are also infected with rabies, but
may not show symptoms. Rabies can be transmitted when saliva or
even the body tissue of an infected animal comes into contact with
another animal or human. Therefore, it is important to seek medical
attention if you’ve had any unprotected, physical contact with a
In addition, if an infestation develops, it is important to
treat the area for bat mites and bat bugs, which will bite