For big game practice on a small scale, head east of the Cascades and hunt rockchucks, also called yellow-bellied marmots, in and around agricultural land.
Rockchucks populations, without grain and grass irrigated and cultivated by humans, do not grow out of balance. They live in small groups and are kept in check by hawks, coyotes, foxes, and bobcats. But give a rockchuck an alfalfa field and life is good. In time, food becomes so plentiful that they don’t have anything left to work at except bringing forth offspring. Soon there are more rockchucks than a farmer can feed.