"Phorusrhacos" stood around 2.5 meters (8 ft) tall and weighed approximately 130 kilograms (280 lbs). It was nicknamed the "Terror Bird" for obvious reasons: it was one of the largest carnivorous birds ever to have existed, along with "Titanis", "Kelenken" and "Brontornis". Its rudimentary wings had claws shaped like a meat hook for tackling prey, which was then killed with the massive beak. It ate small mammals and carrion. 