Regional Yellowstone Wolves

This 2013 photo provided by Horsefeathers Photography shows a black wolf wearing a VHF radio collar that identifies it as Wolf “831F,” a member of the Yellowstone National Park ’s Canyon pack, in Swan Lake, Mont. Big game outfitter William Hoppe shot and killed this female wolf near where 13 sheep were killed in April. Leaders of a wolf advocacy group said Hoppe is intentionally luring the animals by leaving dead sheep carcasses in a pile. (AP Photo/Horsefeathers Photography, Brad Orsted)