Titanosaurs

The terror bird is like a normal size bird but by its outrageous size it's flyless wings are smaller compare to its regular size. The flytlless bird stangs up to 7.1 foot and 3 inches tall, the bird itself is not like any other herbivore it's actually a carnivor that eats meat from overnight carcass that's been Hunted down by smilodon like sabertoot.