BILLINGS — Wildlife advocates are asking a federal judge to stop the use of helicopters to haze migrating bison back into Yellowstone National Park, a practice they allege scares threatened grizzly bears.
Michael Garrity with the Alliance for the Wild Rockies in Bozeman said Thursday that the helicopters are flying in areas where bears have been recently sighted.
Flights began Wednesday when government workers started driving about 270 bison into the park to make way for cattle grazing in southwest Montana. The animals are kept separate to avoid disease transmissions.
The Alliance's lawsuit to stop the bison flights was first filed last year in U.S. District Court in Montana. A request then for a restraining order was denied by Judge Charles Lovell.