First, it can aid in maintaining a healthy herd. Too many deer, specifically, does and fawns, can jeopardize nutrition by pressuring browse. By keeping the population in balance the overall herd will benefit by giving bucks ample browse leading to better antler growth. Does and fawns also benefit since healthy does birth healthier fawns and they'll more than likely birth twins. More food throughout the year means the deer won't have to rob themselves of fat reserves to make it through difficult seasonal extremes.