Can reach five kilograms (12 pounds) in weight.
Body length can range from 90 to 125 centimetres (35 to 50 inches).
Male fishers are larger than females.
Distinguishing characteristics include:
Fox-like face with long snout and large ears
Grey to black colouring on upperparts
Dark brown colouring on underparts, tail and legs
The fisher's diet varies widely and can include:
Young deer and bighorn sheep, usually in the form of carrion
Is a nocturnal hunter and is active all year.
The fisher is classified as Sensitive in the current General Status of Alberta Wild Species report. See:
The species is uncommon to rare in occurrence; population status is unknown and distribution uncertain.
Fisher harvest by trappers has declined since 1985, perhaps as a result of reduction of forest habitat.
Specific season information is provided in the current Alberta Guide to Hunting Regulations. To view the guide
online or to order a printed copy, visit the My Wild Alberta website at:
What's that name, again?
Though also known as "Fisher cat," "Pennant's cat" and "Pecan", the fisher does not fish nor is it a cat. The Chipewyan
First Nations knew it best and called it Tha-cho or "Big Marten."
The fisher is possibly the swiftest and most agile of the weasel family. Although the marten can overtake the red squirrel,
the fisher can overtake the marten and can outrun the snowshoe hare.
Due to its agility, both on the ground and in trees, a fisher has virtually no natural enemies.