The Silver Cat is a mammalian creature from the tales of the lumberjacks of North America. The Silver Cat would live in the trees and had a tail that ended in a hard ball.
It had red slit eyes and preyed on humans. It would wait for an unsuspecting person to pass by and then ambush them from the trees, knocking them unconscious with its tail. It would then drag the body up into its nest to devour it at its leisure.