the harpy eagle is one of the world’s largest eagles, found in central & south america; its name is taken from the harpies of greek mythology. harpy eagles are near the top of the food chain in the rainforest, and adults are typically only preyed on by big cats such as jaguars. harpy eagles feed on sloths, snakes, birds, and sometimes will prey on livestock. harpy eagles are known for their distinct crest, which sometimes looks like ears when fanned out.