Wildlife photography of a single wolf howling in Winter, face smeared with blood

A lone wolf howls into the brooding overcast of a Yellowstone Winter day, its face reddened with blood from a life-sustaining kill. The success of wolf reintroduction into Yellowstone National Park in 1995 arguably stands as one of the pivotal conservation achievements of our day. Ungulates killed by wolves provide food for many species, including ravens, eagles, magpies, coyotes, foxes and weasels. Wolves are difficult to photograph in the wild, making each encounter rare and magical.