Martes americana | American Marten

Martes americana | American Marten

Species Profile · Mustelidae

American Marten

A small forest hunter of North America that follows squirrels through the branches, stores food for hard weather and grows fur on the soles of its feet in winter.

A tree climbing marten of the northern forest

Body

about 45 cm
a small one stays near 35 cm

Tail

bushy
about half the body

Throat

pale orange
a clear mark

Winter feet

furred soles
like small snowshoes

Young

1 to 5
born in spring

Life

about 10 years
in the wild

The american marten

A tree climbing hunter of the north

The American Marten is a small hunter of the northern forest. It is 1 of the few animals that hunts in trees. The body reaches about 45 cm.

A small one stays near 35 cm. The tail is bushy, and it adds more length. The fur is golden brown.

A pale orange patch sits on the throat. It runs along a fallen log and up a trunk. It hunts by day and by night.

Family tree

Carnivora, Mustelidae

The American Marten sits in the phylum Chordata. Its class is the Mammalia. Its order is the Carnivora. Its family is the Mustelidae, the weasels and their kin.

Our animal shares the family with the European Pine Marten. That animal is a close relative of the same size. It lives in the woods of Europe. Our animal lives in the forests of North America.

The 2 species both climb well and both take small mammals. Both also carry a pale patch on the throat. The family is an old one, and its members live on every continent except Australia.

45 cm and a pale throat patch

How to tell one

The body measures about 45 cm. A small one reaches 35 cm. The tail is bushy, and it measures about half the body. The fur is golden brown to dark brown.

The throat carries a pale orange patch. The face is pointed, and the ears are rounded. The legs are short and strong. The claws are only half retracted, so the animal can climb well.

The soles of the feet carry fur in winter. That fur works like a snowshoe on soft snow. The animal has scent glands near the tail. Those glands mark the edge of its ground.

Close-up of an American marten on a conifer trunk showing the golden brown fur, the pale orange throat patch, the pointed face, the rounded ears and the bushy tail held out for balance
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1 Pale orange patch on the throat  ·  2 Rounded ear on a pointed face  ·  3 Fur on the sole of the foot

Mature conifer forest

Where it lives

The species lives in a mature forest. It favours a wood with old conifers. It also lives in a mixed wood. It needs fallen logs and hollow trees.

It makes its den in a hole or in a log. It rests through the coldest hours of a winter day. It travels over a wide area. It hunts on the ground and in the branches.

It needs a wood with plenty of cover. A young wood with no logs suits it poorly. A road through the forest also breaks its ground.

Small mammals, birds and berries

What it eats

The American Marten is an omnivore. It takes voles, mice and squirrels. It also takes birds, eggs and insects. It eats berries and fungi in the autumn.

It hunts on the ground and in the trees. It follows a squirrel through the branches. It kills the prey with a bite to the neck. It stores food in a den for hard weather.

That habit helps it through a cold spell. It needs a great deal of food for its size. It hunts through the day and the night.

Food of the American Marten
It hunts voles, mice and squirrels on the ground and in the trees, and in autumn it also eats berries and fungi.

A delayed birth in spring

The breeding cycle

The pair mate in the summer. The young do not grow at once. The egg waits inside the female for many months. That delay means the young are born in the spring.

The female makes a nest in a hollow tree. She gives birth to 1 to 5 young. The young are blind and have little fur. The female feeds them with milk for 2 months.

They then start to hunt with her. They leave her in the autumn. The animal may live for about 10 years.

Fur trapping and lost old forest

Conservation

The American Marten is listed as Least Concern by the IUCN. It is common in the north of the continent. It has no legal protection in many places.

Trapping for fur was once a great danger. The loss of old forest is the chief danger now. A wood cut for timber loses the dens.

A road also breaks its ground into pieces. The species needs old trees and fallen logs. A large wood left in its natural state gives it the best chance.

Quick hits

Five things to remember

  • It hunts squirrels high in the branches.
  • The pale patch on the throat is its best mark.
  • The soles of its feet grow fur in winter.
  • It can store food in a den for hard weather.
  • The young are born in spring after a long delay.

By st20113