South American Chief Bird

The South American Chief Bird, or the Chiefaven Americanus in scientific, is a large colourful predatory flightless neognath bird. It was smaller than the average terror bird but was larger than the Gastornis. It lived in tropical jungles and rainforests in exotic regions such as its mainland South America.

Facts
These were one of the largest flightless birds of the list. One ton of feather and muscles and around six feet tall (larger than the average grown man). With a 45 cm skull and beak, shaped like a hatchet, this bird's beak tips were perfect for slicing and gulping down chunks of flesh.

When a female Chief Bird have eggs, only one egg specifically, they have to wait two months for them to hatch. These birds were fiercely territorial and, when another Chief Bird got to close…females moved to protect their nest. Since the great extinction of the large and predatory terror birds, these birds were a big success but, what is more, they grew big – big enough to take over the role of the great terror birds.

Although the Chief Bird was one of the largest flightless birds of its time, it had a relatively short neck and thick legs, as opposed to terror birds of prehistoric periods. Put otherwise, the South American Chief Bird was most likely a predator in two different ways. It could hide near bushes or trees waiting for the time to strike like an ambush predator, or they could actively run down proportionally bigger or smaller prey.

Tropical Terrors
A female Chief Bird was shown hunting animals and laid her single egg on the ground, just as the average flightless birds do. However, the egg hatched and came out a baby male Chief Bird while the adult Chief Bird was hunting in another part of the jungle, and then came back to raise and take care of her new chick.