Common raven (Corvus corax) feeding on a duck, Yellowstone National Park, Wyoming, United States of America, North America

Common raven (Corvus corax), Petrified Forest National Park, Arizona, United States of America, North America

Common raven (Corvus corax) pair, Yellowstone National Park, Wyoming, United States of America, North America

Common raven (Corvus corax), Yellowstone National Park, Wyoming, United States of America, North America

Common Raven (Corvus corax), Yellowstone National Park, Wyoming, United States of America, North America

Common Raven (Corvus corax), Bryce Canyon National Park, Utah, United States of America, North America

Griffon Vulture (Gyps fulvus) and Common Raven (Corvus corax) on the luder, Common Raven teases a Griffon Vulture, Castilla-La Mancha, Spain, Europe

Griffon Vulture (Gyps fulvus) and Common Raven (Corvus corax) on the luder, Common Raven teases a Griffon Vulture, Castilla-La Mancha, Spain, Europe

Common Raven (Corvus corax) on a branch in the rain, Poland

White-tailed Eagle (Haliaeetus albicilla) facing a Common Raven (Corvus corax) in the grass, Poland