A great grey owl looks around from its perch on a pine tree on Monday in Two Harbors, Minn. In early January Michaela Rice, a naturalist with the Minnesota Department of Resources, received a ...

But the huge, round facial disc gave it away. It was a great gray owl, which at about 2 feet is North America’s tallest owl, with a 5-foot wingspan. “Their whole body is covered in this dense ...