An outbreak of sarcoptic mange that began in the mid-1990s has caused a decline in fox and coyote numbers, which in turn has bolstered the hare population in North Dakota. Varmint hunters, who traditionally concentrate on predators, have turned to hare control as a wintertime diversion. There's also been an explosion in the cottontail rabbit population, but it's the snowshoe hares and white-tailed jackrabbits that provide the most action. The varminter can use long-range predator calibers or the more challenging .22 caliber. Walking either side of the shelterbelts, especially in the eastern third of the state, should provide plenty of shot opportunities. There is no closed season. Contact: North Dakota Game and Fish Department (701-328-6300; www.state.nd.us/gnf).