Fishers live in similar habitat and have similar tracks. Stone martens are a species native to Europe and Asia. They were released in southern Wisconsin in the early 1970s, where they've established a breeding population. Habits Little is known about the habits of pine martens because they're most active at night. They'll pursue prey, such as red squirrels or chipmunks, up a tree and may climb trees to avoid danger.
Martens move across the ground in a zig-zag fashion, often followed by a series of jumps.
They're solitary but curious animals. Pine martens live in mature, dense conifer forests. They prefer woods with northern white cedar, balsam fir, spruce and eastern hemlock, especially where trees have fallen. These forests provide prey, protection and den sites. In the past, the cutting of large areas of mature conifer forests destroyed much marten habitat.