Bernard Castelein / Southern cararcara (caracara plancus) feeding on turtle egg, Pampas del Yacuma Protected Area, Bolivia

Bernard Castelein / Southern cararcara (caracara plancus) at waters edge, Pampas del Yacuma Protected Area, Bolivia

Marie Read / Crested caracaras (Caracara cheriway), midair aggressive interaction between two for access to perch, Martin Refuge, Rio Grande Valley, Texas, USA, March.

Suzi Eszterhas / Southern-crested Caracara (Caracara plancus) Serra de Canastra National Park, Brazil

Angelo Gandolfi / Southern caracara (Caracara plancus), two flying over rock formation. Chapada dos Guimaraes, Mato Grosso, Brazil.

Paul Hobson / Common / Crested caracara (Caracara plancus), portrait. Costa Rica.

Paul Hobson / Common / Crested caracara (Caracara plancus). Costa Rica.

Ingo Arndt / Southern Caracara (Caracara plancus), Torres del Paine National Park, Patagonia, Chile

Ingo Arndt / Southern Caracara (Caracara plancus), Torres del Paine National Park, Patagonia, Chile

Ingo Arndt / Southern Caracara (Caracara plancus), Torres del Paine National Park, Patagonia, Chile

Ingo Arndt / Southern Caracara (Caracara plancus), Torres del Paine National Park, Patagonia, Chile

Ingo Arndt / Southern Caracara (Caracara plancus) flying, Torres del Paine National Park, Patagonia, Chile