Attacks on cattle and dogs by wolves that migrated into northwest Colorado from Wyoming have stoked a rancher-wolf controversy sooner than expected. Don Gittleson woke up Wednesday morning to a sight that’s starting to feel common on his North Park ranch: a cow torn up by wolves, the third attack on his livestock since a few days before Christmas. If this were Montana, Wyoming or Idaho, Gittleson could pull out a gun and shoot the predator dead. But this is Colorado. Wolves in Colorado are protected under state law. Killing them – no matter how many cows or sheep or...