They are the only animal known to consistently prey on porcupines. They are solitary hunters and will occasionally feed on fruits and berries. Active and speedy tree climbers, they are active both day and night, and have also been known to swim. Breeding occurs late winter to early spring with 1-5 kits being born per liter. Denning occurs in hollow trees and logs.
Fishers enjoy dense forests with extensive overhead canopy and usually avoids open areas.
The fisher once inhabited the northern forests North America. Due to excess trapping and logging, the fisher was nearly gone from most of the US by 1930. Today, because of closed trapping seasons, regeneration of many logged-over forests, and reintroduction programs fishers have returned to some of their old habitats. Fishers have not fully recovered however in the Rocky Mountains and the Pacific Northwest, and are now at such critically low numbers that the fisher is threatened with complete extinction. All Rights Reserved.