Nate Chappell/ BIA / Savannah Hawk (Buteogallus meridionalis) juvenile flying, Pantanal, Brazil

Thomas Marent / Savannah Hawk (Buteogallus meridionalis) juvenile, Los Llanos, Colombia

Luciano Candisani / Savannah Hawk (Buteogallus meridionalis), Pantanal, Brazil

Pete Oxford / Savanna hawk (Buteogallus meridionalis) perched, savannah, Rupununi, Guyana

Pete Oxford / Savannah Hawk (Buteogallus meridionalis), Rupununi, Guyana

Murray Cooper / Savannah Hawk (Buteogallus meridionalis) with prey, Ecuador

Murray Cooper / Savannah Hawk (Buteogallus meridionalis) flying and carrying prey, Ecuador

PREMAPHOTOS / Caterpillar larva of Silver-striped hawk moth (Hippotion celerio) resembling a small snake, in savannah, South Africa

Pete Oxford / Yellow-headed Caracara (Milvago chimachima) perching in tree, Cerrado habitat, Brazil

Pete Oxford / Savannah Hawk (Buteogallus meridionalis) perching in tree, Machalilla National Park, Ecuador

Pete Oxford / Savannah Hawk (Buteogallus meridionalis) perching on snag, Machalilla National Park, Ecuador

Tui De Roy / Savannah Hawk (Buteogallus meridionalis) hunting in savannah grassland habitat, Caiman Ecological Refuge, Pantanal, Brazil