Great black hawk (Urubitinga urubitinga) perched on a tree, Corcovado National Park, Osa Peninsula, Costa Rica, Central America

An adult black-collared hawk (Busarellus nigricollis), in flight at Pousado Rio Claro, Mato Grosso, Brazil, South America

A black-collared hawk (Busarellus nigricollis) on the canopy, Mato Grosso, Brazil, South America

A black-collared hawk (Busarellus nigricollis), Rio Tres Irmao, Mato Grosso, Pantanal, Brazil, South America

Black-collared hawk (Busarellus nigricollis) in flight, Pantanal, Mato Grosso, Brazil, South America

An adult black-collared hawk (Busarellus nigricollis), Nauta Cano, Pacaya-Samiria Reserve, Peru, South America

Black-collared hawk (Busarellus nigricollis), Pantanal, Mato Grosso, Brazil, South America

A young black-collared hawk (Busarellus nigricollis), Rio Negrio, Mato Grosso, Pantanal, Brazil, South America

Black-collared Hawk (Busarellus nigricollis) in flight, Pantanal, Mato Grosso, Brazil, South America

Beer mural on casino wall, Black Hawk City, Rocky Mountains, Colorado, United States of America, North America

Silhouette of helicopter flying in front of full moon

Portrait of a pale chanting goshawk (Melierax canorus) against black background, England