Predator Gland and Call Trapping Lure A thick, strong, musky lure for Coyote, Fox, Bobcat, Fisher, Marten and Raccoon. Use at either dirt hole or flat sets. A properly balanced blend of weasel, muskrat, mink, and red fox glands plus beaver castor and a touch of skunk. After aging for a full year, it is fixed and stabilized.