As Yellowstone National Park in Wyoming opens for the busy summer season, wildlife advocates are leading a call for a boycott of the conservative ranching state over laws that give people wide leeway to kill gray wolves with little oversight. The social media accounts of Wyoming's tourism agency are being flooded with comments urging people to steer clear of the Cowboy State amid accusations that a man struck a wolf with a snowmobile, taped its mouth shut and showed off the injured animal at a Sublette County bar before killing it. While critics contend that Wyoming has enabled such animal cruelty, a leader of the state’s stock growers association said it's an isolated incident and unrelated to the state's wolf management laws.