Image 1 of 1
094 NATIVE GRAZERS - BISON
Bison, Niobrara Valley Preserve, Nebraska. In early August, bison move across the prairie, foraging above the Niobrara River valley in the Nebraska Sandhills. Historically, bison would move in small groups much of the year, but by fall would gather in huge herds during the rut and on migration to wintering grounds. Before Euro American settlement, an estimated 30-60 million bison in the Great Plains, their grazing and disturbance a vital force in the evolution of the prairie landscape. Between the 1860's and 1900, bison were all but eliminated from the Great Plains. Today, only small managed herds exist on the prairies, but dreams of large free roaming herds of bison on large scale preserves rumble on the horizon.