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Common
name: Big Brown Bat
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Species:
Eptesicus fuscus
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Description:
It's a large bat, brown above with a paler belly, with hairs dark
at base; wings and interfemoral membrane black. Their colors vary
from light in deserts to dark in forests. Length is 110-130 mm;
weight is 13-18 g. No fur on wings or interfemoral membrane.
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Habitat:
Most common bat found in cities. Maternity colonies, numbering
up to 500-600 bats, are usually located in buildings, but sometimes
under a bridge or a HotLlow tree, farmlands, parks and forests.
Less frequently, during the winter, they can be found in caves,
mines and other protected areas. While hibernating, the body temperature
may be only slightly above freezing.
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Food:
Their food is entirely insects, which they capture in flight. Fecal
pellets of these bats have shown that they feed on beetles, wasps,
and their allies, ants, stone flies, plant hoppers and leafhoppers,
true bugs, and cockroaches. Peculiarly enough, it rarely eats flies
or moths. They are seldom found in their digestive system.
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Range:
Occurs throughout most of North America from central Canada,
south through Central America into northern South America.
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Reproduction:
Females and young form maternity colonies of 20-300
individuals. Such colonies are in warmer locations than ordinary
roosting sites.
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Other:
The Big Brown Bat is a relatively fast flier, at a speed of 40 mph
(65 km/h).
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More
information :
Natural
History Notesbooks: Mammals
eNature:
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Common
name: Hoary Bat
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Species:
Lasiurus cinereus
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Description:
A largest bat in its range; ears are short and rounded, with
black, naked rims. Densely furred, grayish-brownish color, heavily
frosted with white on tips of fur. Length 136mm and tail 57mm; foot
12mm; weight 20-35g.
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Habitat:
Moves north in the spring and south in the winter. It is found
in wooded areas, both deciduous and coniferous. It hangs on tree
branches. Comes out at night, but during migration it comes out
in the day time.
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Food:
They eat moths, beetles, flies, grasshoppers, termites, dragonflies,
wasps, and many other types of insects.
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Range:
They are found in all 50 states, Canada to South America,
the only bat found in Hawaii.
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Reproduction:
Mates in fall and maybe in winter; usully have 2 youngs born
late May-early June, but they can have 1-4 young.
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Other:
Main enemies are hawks and owls.The
bat has a large skull and large strong teeth.
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More
information :
.www.ireseau.com
gamma.mhpcc.edu
eNature:
bats
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Common
name: Little Brown Myotis
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Species:
Myotis lucifugus
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Description:
This bat is a small mammal with a body length of about 3 - 3 1/2"
and weighing approximately 1/8 to 1/2 an ounce. The wingspan ranges
from 6 - 8". As the name says, these bats are a brown glossy
color, with tips of hairs burnished brown above, and light buff
color below. Ears are rounded and short.
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Habitat:
These bats are usually found living around swampy lands where
insects are abundant. Their most common habitat is near rivers,
streams, trails, and other outdoor areas with plenty of food and
water. Bats will often fly down close to other mammals that have
insects nesting in their fur. In winter they hibernate in caves
and mines.
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Food: Little
brown bats are insectivorous. They feed on small insects, especially
flies and moths. They can eat 50% of their own body weight every
night. They use echo location to navigate and locate the prey.
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Range:
The little brown myotis is found from Labrador west to central
Alaska and south of the Appalachians in Georgia and Arkansas.
They are located in most states excluding Florida, Texas, and
Southern California. They are very abundant in New hampshire.
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Reproduction:
Sexual maturity is reached in 6 to 9 months for females and about
a year for males. Breeding occurs from September to October but
the female stores the sperm for fertilization in the spring. The
young are born from mid-June to early July. The females usually
produce one offspring per year and occasionally two, which become
self-supporting within a month
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Other:
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Common
name: Long-legged Myotis
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Species:
Myotis volans
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Description:
A large myotis. Tawny or reddish to nearly black above; grayish
to pale buff below. Ears are short
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Habitat:
Mainly coniferous forests. In summer, roosts in trees, crevices
or buildings.
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Food: The
Long-legged Myotis feeds primarily on small months, but also eats
other small insects.
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Range:
Western North America from west and south of British Columbia
and Alberta, south to Mexico and east to Dakotas,Nebraska,Colorado,
and western Texas.
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Reproduction:
Mates in fall; fertilization delayed until spring. Ovulates
March-May; 1 young born May-August.
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Other:
These bats form nursery colonies of up to several hundred members,
which disperse in fall. Their winter behavior is unknown.
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Common
name: Palid bat
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Species:
Antrozous pallidus
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Description:
Bats have wings and the ability to fly. Their wings are not constructed
like a birds but instead have leathery skin streatched across the
bones that move like hands and fingers.
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Habitat:
The pallid bat is usually found in rocky, montainous areas and
near water. They are also found over more open, sparsely vegetated
grasslands, and they seem to prefer to forage in the open. The
pallid bat has three
different roosts. The day roost is usually in a warm, horizontal
opening such as in attics or rock cracks; the night roost is usually
in the open, near foliage; and the hibernation roost, which is
often in buildings, caves, or cracks in rocks.
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Food:
The Pallid bat can consume up to half its weight in insects every
night. It rarely catches flying insects; instead, they usually capture
their prey on foliage or the ground. In addition to using
its ecHotLocation, the pallid bat listens for sounds made by the
prey, and it also has decent visual abilites. After catching prey,
the bats return to their night roost, which is usually in an open
area, to eat their catch. They feed on insects such as the ten-lined
beetle and also on crickets and scorpions.
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Range:
Pallid bats are found in Texas. There are two distint races in
Texas. One is the A.P. bunkeri that lives on the northern panhandle.
The other is the A.P. pallidus, and lives in the west and the
south. The pallid bats are also found in southern-central Washington.
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Reproduction:
Pallid bats become sexually mature at about two years of age. Mating
begins in October and goes through February. The female stores
the sperm until sometime during the first two weeks in April, when
ovulation and fertilization take place. The female bat usually gives
brith to twins. Birth takes place during the first half of June.
The foetuses weigh 3 to 3.5 grams at birth, and cannot open their
eyes. In four to five weeks young bats are capable of short flights,
and by eight weeks they attain full adult size.
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Other:
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Common
name: Silver haired bat
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Species:
Lasionycteris noctivagans
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Description:
The silver haired bat is a medium sized bat. It has a length of
90-115 mm, wingspread, 270-310 mm; head size, 60 mm long; and a
hind foot length of 6-12 mm. This bat receives it's name from its
dark, silver-tipped fur. The bat's fur is usually black in color;
however, some individuals may be dark brown with yellow-tipped fur.
The ears of the bat are relatively short (15-17 mm in height), round,
and naked.
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Habitat:
The silver-haired bat likes temperate, northern hardwoods with
ponds or streams nearby. The usual day roost for the bat is behind
loose tree bark. Due to its solitary nature and adaptation, the
bat rarely invades buildings in large enough numbers to cause
alarm. During the winter months, it hibernates in northern areas,
inside trees, buildings, rock crevices, and similar protected
structures.
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Food: The
Silvered-haired bat is insectivorous. Its diet mainly consists of
flies, beetles, and moths. It also eats any bug that gets in its
mouth while flying.
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Range:
It's found throughout the United States, northward into soughtern
Canada up to the treeline, and reaches its northern limits in
Alaska.
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Reproduction:
They reproduce sexually. Mating occurs in autumn when both sexes
congregate for migration. Births occur after a gestation period
of 50-60 days.
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Other: Enemies
of the silver-haired bat include the striped skunk and the great
horned owl.
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More
information :
Silver-haired
Bats(Lasionycteris
noctivagans)
eNature:bats
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Common
name: Western pipistrelle
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Species:
Pipistrellus hesperus
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Description:
This is the smalestl bat in the USA. It is yellow, gray, or red-brown
on the top. The belly is white. Wings, ears, nose and feet are black.
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Habitat:
They hibernate in caves, mines and crevices.
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Food: Pipistrelles
eat insects. They skim over ponds, streams or other bodies of fresh
water to drink.
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Range:
In the western United States from southeast Washington to Texas.
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Reproduction:
In June, females collect in a maternity colony where each gives
birth to two young.
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Other:
This bat is usually the first to come out in the evening. It flies
slowly and its flight is erratic.
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eNature:
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Common
name: Western small-footed myotis
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Species:
Myotis ciliolabrum
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Description:
Small short ears, long tail, upper parts light buff to warm buff
with a tri-color effect. Under part is pale buff to nearly white.
The tail measures 37mm, its feet are7mm, making the total lengh
79mm. Weight - 4-6 grams.
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Habitat:
It lives in lava tube caves, cracks, crevices, bark and old buildings.
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Food:
It eats small insects, moths, flies, bugs, and ants.
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Range:
Californa, Washington Oregon, Texas
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Reproduction:
Mating is done after hibernation, one baby is born in June, Twins
are rare.
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Other: Found
in drier areas. A black mask across the muzzle to the ears.
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Common name:
Yuma Myotis
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Species:
Myotis yumanesis
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Description:
The yuma myotis is a small bat. The fur is tan or brown on top with
white or buff colored fur underneath.
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Habitat:
The yuma myotis can exist in many different habitats from woodlands,
to deserts near open water. It must have rivers, lakes, streams,
or other open water sources. Since the Columbia River flows through
the Hanford Reach, and this is a protected area, it is a perfect
habitat for the yuma myotis.
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Food: This
bat eats insects. They usually feed over water from dusk until about
two hours after sunset. They like to eat moths, beetles, and other
small insects. Prey is found through ecHotLocation. The bat sends
out ultrasonic sounds that bounce off the prey, telling the bat
where to find its food. It flies through the air and catches the
insect in its mouth. It feed for several minutes and then drinks.
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Range:
Western North America, from British Columbia to Central Mexico
and east to Oklahoma.
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Reproduction:
Females HotLd the male sperm over the winter. When the female
ovulates in the spring , the egg is fertilzed. The females gather
in maternity roosts in April. Each female gives birth to one offspring.
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Other:
These bats roost on vertical surfaces, hanging by their thumbs and
toes, with their wings tucked in. At the Hanford Reach, they roost
mostly in abandoned buildings.
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More
information :
Burke
Museum, University of Washington
Californis Animal
Facts
Animal
Diversity Web
University
of Nevada, Sensitive Species
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