Photo by Kent Wamsley, The Nature Conservancy
Bison calves graze in the lush, green prairie grass at the Dunn Ranch after a prolific output of new babies this spring. Some 42 baby bison had been born at the ranch by June 14 and more are on the way, according to Kent Wamsley, manager of the ranch. Officials said there are currently about 170 yearling to adult animals at the ranch.