Terror birds
Simulations of a terror bird strike produced by the Discovery Channel using a pneumatic model showed the larger species could easily crush the skull of its prey and puncture through bone with its beak. They had a fearsome weapon, a beak which could be driven into prey with the force of a sledgehammer. They could run at speed over long distances. The Phorusrhacids are colloquially known as "terror birds". The larger species were apex predators during the Miocene.