Coalition: Leave bison alone Environmentalists and a group of property owners near Yellowstone National Park said Thursday they are seeking to intervene in a lawsuit over the capture and hazing of bison that wander outside the park. A group of ranchers in May asked a state judge to force the Department of Livestock to capture, kill or haze any bison in an area west of the park by May 15 of every year. The ranchers, along with the Montana Stockgrowers Association, argue the bison could spread the disease brucellosis, which causes cattle to abort their young. But no cattle graze on the land at the center of the dispute -- the Horse Butte peninsula on Hebgen Lake near West Yellowstone. The Natural Resources Defense Council, Greater Yellowstone Coalition and eight nearby property owners want bison on the butte left alone. Although the groups seeking to intervene in the case have objected to the state's bison policies in the past, they contend the ranchers' lawsuit would lock in those policies and block any opportunity for more bison tolerance....