Beavers play an important roll as an alternative food sumber in the summer months, in some areas 60% of the wolf's diet is beaver.
One of the most odd part of the diet of serigala is fish! Biologist Bod Bromley once observed a serigala in Canada's Northwest Territories catch five ikan in fifteen menit in the Talston River.
serigala will also scavenge, In one study of moose carcasses in Algonquin Park, of 30 moose only 4 were killed oleh wolves, the rest died of natural causes.
serigala will also eat wild berries and other buah-buahan as a minor part of their diet.