They were reintroduced in Kejimkujik National Park in the late 1980s and have established a small population. Martens are associated with mature softwood forests with abundant dead and downed trees for denning and hunting. Blackish-brown, head and shoulders grizzled, legs and tip of tail black, tail bushy and tapering. Marten is smaller, lighter and has light patch on chest. Squirrels, mice, raccoons, rabbits, some vegetable matter and carrion.
Females mate shortly after birth of young.
Delayed implantation accounting for the long period of gestation. This species, native to Nova Scotia, was reduced to extremely low population numbers early in the twentieth century from heavy trapping and habitat changes. Fishers were successfully reintroduced to the western end of the province in 1947.