In the early morning light, dust from hooves creates a fog at Silvies Valley Ranch in remote eastern Oregon. Cowboys whistle and talk low to their eager herding dogs. They’re moving the cattle from one vast, sage-studded range to another.
Five young purebred bulls mysteriously showed up dead on the ranch this past summer, drained of blood and with body parts precisely removed.
The ranch’s vice president, Colby Marshall, drives his truck down a U.S. Forest Service road.
“Then we’ll get out and take a little walk to where one of the bulls was found. And the carcass is still there,” Marshall says.