Free-tailed bat
(Tadarida brasiliensis) |
This bat is called "free-tailed"
because the end of the tail extends beyond the edge of the
tail membrane. Free-tailed bats are medium sized with brownish
gray fur. The free-tailed bat is the most abundant bat in
Florida with very large colonies numbering from 50 to over
20,000 bats. Free-tails are strong fliers, they can fly as
fast as 60 mph and can fly as high as 2 miles.
Mexican free tails usually feed on small moths and beetles.
Free-tailed bats normally mate from mid-February through
late March. The females give birth to a single pup from May
to June, sometimes as late as July or August.
Weight 11-15 grams, wingspan 30-35 centimeters |
Evening bat
(Nycticeius humeralis) |
The evening bat is a small brown
bat with black wings and a black muzzle. Evening bats are
slightly smaller than the Mexican free tails. Evening bat
colonies are small in size and in many cases evening bats
are found living among free-tail bat colonies.
Evening bats consume a variety of small insects.
Evening bats mate in winter. They usually have twins but
can have from 1-3 pups per liter. The pups are usually born
late April to early May.
Weight 7-14 grams, wingspan 26-29 centimeters |
Hoary bat
(Lasiurus cinereus) |
The hoary bat is a large heavily
furred bat that spends most of the time concealed in the foliage
of trees. They are solitary roosters. Because they seldom
enter houses and spend the daylight hours well concealed,
they are rarely seen by humans.
They eat Moths, mosquitos and other insects and may occasionally
capture another bat as food.
Hoary bats give birth to two young in mid-May through early
July. The Hawaiian subspecies is the only bat found in Hawaii
and is considered endangered.
Weight 25-30 grams, wingspan 34-41 centimeters |
| Big brown bat
(Eptesicus fuscus)
|
Big brown bats are familiar to
more people in the United States than any other species of
bat. They roost in man made structures in the summer and move
to caves and mines to hibernate during the coldest weather.
They consume beetles, ants, flies, mosquitos and other insects.
Mating takes place in autumn and winter, females store the
sperm and fertilization takes place in spring. In the eastern
United States, big browns usually bear twins in early June.
In the western United States usually only one baby is born
each year.
Weight 14-21 grams, wingspan 32-40 centimeters
|
| Northern yellow bat
(Lasiurus intermedius) |
Yellow bats typically inhabit
wooded areas in the vicinity of permanent water. Their distribution
coincides with Spanish moss where they often roost and bear
their young. In some parts of Florida it is the most common
bat. They are somewhat colonial, especially females during
the nursing season.
Northern yellow bats consume flies, mosquitos, beetles and
other insects.
Mating occurs in autumn and winter. Two to four babies are
born in May or June.
Weight 14-31 grams, wingspan 35-41 centimeters |
Seminole bat
(Lasiurus seminolus) |
Seminole bats are the most common
bats seen flying in the evening throughout the United States.
They fly during all seasons, even in mid winter. Their distribution
coincides with Spanish moss where they most often roost. They
also roost in loose bark and in caves. They wander extensively
after young are weaned.
Seminole bats consume true bugs, flies, mosquitos, beetles,
crickets and other insects which are usually captured at canopy
level.
One to four babies are born during late spring or early summer.
Weight 9-14 grams, wingspan 29-34 centimeters |
Little brown bat
(Myotis lucifugus) |
The little brown bat inhabits
buildings during the summer and in the winter hibernates in
caves and mines. The females form colonies of hundreds or
thousands, usually close to a lake or stream. They prefer
to forage over water but will forage among trees.
Little browns eat gnats, crane flies, beetles, wasps and
moths. Insects are usually captured with a wing tip.
Mating occurs in autumn and one baby is born in May through
early July. The mother keeps the baby beneath a wing when
at rest. Their life span may be more than 20 years.
Weight 7-14 grams, wingspan 22-27 centimeters |
Eastern red bat
(Lasiurus borealis) |
Eastern red bats are foliage
roosters, usually hanging by one foot, giving them the appearance
of a dead leaf. They are almost fully furred and can respond
to cold temperature by increasing their metabolism. Predators
include many types of birds.
Red bats commonly feed beneath street lights, on moths, crickets,
flies, mosquitos, true bugs, beetles, cicadas and other insects.
Eastern red bats mate in flight during August and September,
the sperm is stored over winter, and females give birth to
1-4 babies during the late spring or early fall.
Weight 9-15 grams, wingspan 28-33 centimeters |
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