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Michigan dnr > wildlife viewing guide
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Weasel Family | Songbirds | Waterfowl
| Birds of Prey | Night Species
Weasel Family
Members of the weasel family vary greatly in size, appearance,
and behavior, but they all have low-slung bodies, short legs, and short,
rounded ears. Most are nocturnal, so the best time to look for them is at
dusk and dawn.
 Weasel
Weasels are long and slender. They have brown bodies with white underparts and a black tip on the tail. In winter, they
turn completely white except for the tail tip. Adult males are about 12
inches long (including the tail); females are half that size. Weasels spend
most of their time on the ground hunting.
 Mink
Minks are long and thin, but larger than weasels. Adult males are 20-30
inches long (including the tail). Their bodies are chocolate brown to black
except for white chin patches. They live and hunt on the ground near water
and are good swimmers.
 Marten
Martens are taller and stouter than mink. Adults are about two feet long,
including their long, bushy tails. They usually have orange or buff-colored
throat patches. Secretive and elusive, martens spend most of the time in the
trees and are rarely seen.
 River otter
The river otter has an elongated body that is very stout and muscular. Adults
are 3-4 feet long (including the tail). Otters are chocolate brown on top
with lighter brown bellies and silvery chin patches. They are master swimmers
and spend nearly all of their time in or near water. Otters are active during
the day, but they are very sensitive to human disturbance.
 Badger
Badgers have low, wide bodies, short, bowed legs, and long, sharp claws.
Adult males are 2-3 feet long; females, somewhat shorter. Their shaggy,
coarse fur is mostly grizzled gray, while their legs and snouts are nearly
black. The distinctive facial pattern is unmistakable. Badgers live in open
fields, farmland, and on woods edges.
Fisher
(not pictured)
The fisher has a long body, short legs, large feet, a long bushy tail, and
dark fur. Adult males are 3 to 4 feet long and adult females are 2.5 to 3
feet long. They are very adaptable to their environment, but avoid open areas
that have no overhead cover. They generally stay on the ground, but do climb
trees well. Contrary to its name, the fisher does not feed on fish, but on a
variety of foods from small mammals and carrion to insects, fruits, and nuts.
The fisher is one of the few predators that can successfully hunt and eat
porcupines.
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