Kelenken was a Terror Bird from Patagonia itself reached from 7ft to 10ft tall and around 550 lbs to 770 lbs Kelenken lived from Late Cenozoic to Early Pleistocene in modern Argentina itself had powerful legs and beak with 70 cm skull itself was a large bird and apex predator later on during Great Collision of South America and North America it rivaled with dire wolf and smilodon Kelenken often attempted to peck through Glyptodont Kelenken itself was supposed to succeed Dinosaurs.  