National Whitetail Deer Foundation founder Bob Higgs specializes in hunting the rare, mature bucks that have the potential to grow Boone and Crockett racks. He claims that such deer do less breeding than younger bucks because they travel less. Even as most other bucks turn footloose, these deer prefer the security of their known bedding areas. According to Higgs, some bucks are naturally warier than others. "One pen-raised deer will eat out of your hand, while another brought up in the same environment won't come near you," he says. "It's all in the genes." Bucks with an innate sense of caution tend to survive longer, says Higgs, and in doing so further learn that the more time they spend on their feet, the more apt they are to encounter hunters.