Last year I found out what happens when the coyotes find a grey fox in your leg hold. A mess of a scene with a grey fox leg caught in my mb550 but no fox just a front leg. Bloody mess everywhere and a unreal blood trail where they carried it off. I had a jip yote caught in the next trap 30 yards away and the other fox in a set a couple hundred yards away. Later in the season and several foxes later I had a nice grey caught and the next two sets on the line both yielded coyotes. When I skinned that fox i found he had survived a fight likely with those coyotes as he had been bitten hard all over.