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

Black-collared hawk (Busarellus nigricollis) in flight, Pantanal, 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

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