The stark beauty of a North Dakota winter is matched only by the resourcefulness of the animals that call this state home.

North Dakota's Audubon National Wildlife Refuge is rife with all sorts of native passerines, waders and waterfowl.

Such herds rival the Serengeti’s teeming masses of wildebeests for the title of the world’s most massive—and awe-inspiring—mammal migration ... part of their North Dakota-size range ...