Duck hunting has changed greatly since the days of unlimited duck kills, as the limit of fifty ducks a day established in 1902 has fallen to the present three. A legitimate hunter now, Dale Hamm learned the art of market hunting-- taking waterfowl out of season and selling them to restaurants-- from his father during the l920s. During the l930s and l940s, he kept his family alive by market hunting. At the peak of his career, Hamm poached every private...