Humans pose a threat to grey foxes through hunting, trapping, and the use of automobiles. Also, a farmer may resort to killing a fox if it acts as a nuisance to his animals. The four main predators of the grey fox are the coyote, the bobcat, the golden eagle, and the great horned owl.xact numbers of the grey fox population are hard to obtain because they live in such large ranges, exhibit secretive habits, and are difficult to capture. Grey foxes hold multiple roles in nature, serving as predators, prey, and hosts for several different parasites.