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| Features:
Total
length: 2.8-3.5 inches
Tail length:
1.1-1.6 inches
Ear length:
0.4-0.5 inches
Weight:
0.2-0.4 ounces
This small, brownish bat looks extremely similar to the very common
little brown bat. The differences that distinguish the Indiana,
or Social myotis from the Little brown bat is the definite keel
on the calcar (spur-like extension on the foot) and smaller feet
with shorter hairs on the toes. The color is more dull and gray
than the golden brown of the more common species. The reason for
the dullness is due to three color bands running on each hair from
tip to the base. The fur is fine and fluffy.
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| Dental
formula:
Incisors/Canines/Premolars/Molars/total
Top – 2/1/3/3/18
Bottom – 3/1/3/3/20 |
Behavior:
The Indiana myotis perfers medium to large sized caves, and nest
close to the cave entrance in large numbers during the winter
hibernation period.
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Dental
Formula:
same as above for Indiana bat
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Features:
Total
Length: 2.9-3.1 inches
Tail Length:
1.2-1.3 inches
Ear Length:
0.5-0.6 inches
Forearm
length: 1.2-1.4 inches
Weight:
0.1-0.3 ounces
The Small-footed myotis is the smallest bat in Eastern North America,
about the size of a ruby-throated hummingbird. The small foot (0.3
inches) of this bat is where the species gets its name. The dorsal
(back) color is pale yellowish brown to golden brown. The black
ears and mask and the pale buff or whitish belly hair stand out
as a distinguishing contrast. There is a definite keel on the bat’s
calcar (spur-like extension on the foot). These small feet, black
face, and short forearm characteristics are what make the Small-footed
myotis stand out from other species of bat.
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Behavior:
During winter, the small-footed bat enters hibernation
in caves and mine tunnels, and during summer, buildings serve
as typical roosting sites. Different from most myotis species,
the small footed myotis hibernates horizontally, nestling between
cracks and crevices, and also tends to be solitary.
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