Thomas Mangelsen / Coyote (Canis latrans) pair following a trail in the snow, Yellowstone National Park, Wyoming

Thomas Mangelsen / Coyote (Canis latrans) chasing Common Raven (Corvus corax) group National Elk Refuge, Wyoming

Thomas Mangelsen / Coyote (Canis latrans) pair scavenging on Elk (Cervus elaphus) killed by wolves, Elk National Refuge, Wyoming

Michael Quinton / Common Raven (Corvus corax) group and a Coyote (Canis latrans) feeding on a carcass, Yellowstone National Park, Wyoming

Jim Brandenburg / Coyote (Canis latrans) pups, New Mexico

Norbert Wu / Coyote (Canis latrans) howling, California

Michael Quinton / Coyote (Canis latrans) carrying a captured Cutthroat Trout (Oncorhynchus clarki) as a Raven (Corvus corax) looks on, Yellowstone National Park, Wyoming

Michael Quinton / Coyote (Canis latrans) pair howling at dusk, Yellowstone National Park, Wyoming

Yva Momatiuk & John Eastcott / Coyote (Canis latrans) juvenile, Theodore Roosevelt National Park, North Dakota

Yva Momatiuk & John Eastcott / Coyote (Canis latrans) juvenile, Theodore Roosevelt National Park, North Dakota

Thomas Mangelsen / Coyote (Canis latrans) behind drifting snow, Wyoming