No albino bears?
I believe that albinism can happen in any species including bears but other than the white fur, these bears don't have the other traits of albinism.
Bears can have unusual colors. The Kermode bear of British Columbia is a white version of the common black bear but again not an albino. The glacier bear of Northern BC, Yukon, and Alaska is a silver-gray colored common black bear. Both are quite rare and spread over thousands of square miles of territory, so they are seldom encountered.