Yellowstone bison pushed back into park for summer

AP Photo/Ted S. Warren, File

In This Feb.14, 2011 file photo a group of bison graze, just inside Yellowstone National Park near Gardiner.

BILLINGS — Several hundred Yellowstone bison have been hazed back into the national park after spending the winter grazing in southwest Montana.

Steve Merritt with the Montana Department of Livestock said Monday the animals are expected to stay inside the park as livestock return to the area. The bison were hazed from the West Yellowstone area by a state-contracted heli...