A long-simmering question in big-game management remains: What role do predators play in deer herd numbers? Can population spikes in predators decimate deer numbers, or do they have only a minor effect? The three major predators of deer, in order of importance, are the mountain lion, the coyote and the bobcat. Man is certainly a predator but his predation is limited, controlled and even eliminated, if need be. Predator control was once widespread and practiced by both federal and state agencies, but those efforts have largely been abandoned. Today, predator control by trappers, where it is used at all, is generally at the state level and involves complaints of loss of domestic animals such as sheep, cattle, horses or fowl. But should this control really be taken off the table?