Ingo Arndt / White-throated Caracara (Phalcoboenus albogularis) chasing Black-chested Buzzard-Eagle (Geranoaetus melanoleucus) while flying, Torres del Paine National Park, Patagonia, Chile

Roland Seitre / Red-throated caracara (Ibycter americanus) perched in tree, Tambopata Research Center, Tambopata, Madre de Dios, Peru.

Nick Garbutt / Two White-throated caracaras (Phalcoboenus albogularis) perched on rock in deep snow and in flight, Torres del Paine National Park / Estancia Laguna Armarga, Patagonia, Chile.

Nick Garbutt / White-throated caracara (Phalcoboenus albogularis) scavenging on remains of Guanaco (Lama guanicoe) carcass in snow, Torres del Paine National Park / Estancia Laguna Armarga, Patagonia, Chile.

Nick Garbutt / Puma cub (Puma concolor), aged nine months, on snow-covered hillside with two White-throated caracaras (Phalcoboenus albogularis), perched on rock and in flight above, Torres del Paine National Park /...

Nick Garbutt / Puma (Puma concolor) cub, aged nine months, chasing scavenging White-throated Caracaras (Phalcoboenus albogularis), Torres del Paine National Park / Estancia Laguna Armarga, Patagonia, Chile.