FILE - This Nov. 7, 2017, file photo provided by the National Park Service shows a wolf in Yellowstone National Park, Wyo. Idaho wildlife officials say an attack by two wolves panicked a flock of sheep and 143 died after they ran into a gully where they were crushed and suffocated. The Idaho Department of Fish and Game and the U.S. Department of Agriculture's Wildlife Services on Thursday, June 2, 2022, confirmed the sheep deaths in mid-May in southwestern Idaho in foothills north of Boise. (Jacob W. Frank/National Park Service via AP, File)