Weight: 600 pounds
- Adult (both sexes): Vibrant blue feathers with beige underbelly, hind legs and beak. Vivid red face.
- Juvenile (both sexes): Young are naked and pink-skinned from hatching until developing their plumage.
Diet: Diatryma is a predator of small ungulates and rodents, but it will also eat carrion, nuts and fruit.
Preferred Habitat: Lowland Forests.
Social Structure: Diatryma is strictly solitary. It is also extremely territorial and will defend its territory fiercely against other Diatryma.
Diatryma is a massively-built bird with tiny wings unsuited for flight. Its thick legs are sturdy and very powerful. The bird’s massive beak makes up for half of its head. The beak is deep and strongly-constructed, perfect for crushing bones.
Diatryma is a huge bird with a bad temper. Towards other predators and even others of its kind it is extremely aggressive; first attempting to warn away the enemy with harsh macaw-like screeching before attempting to delivering a terrible disemboweling kick or a bonecrushing bite. Being a robust bird, Diatryma is not built for fast running and is therefore an ambush predator, using the cover of trees and vegetation to get close to prey before putting on a short burst of speed. Prey is disabled with a swipe of its beak or a well-aimed kick with its sharply-clawed feet, before being pinned and ripped apart.
During the breeding season males will enter a female’s territory, mate with the female, and then quickly separate. Females are forced to nest on the ground, often at the base of trees. The female lays one or two eggs, and as she is too large and heavy to sit on them, she incubates them with foliage. The chicks are naked, blind and vulnerable at birth and are cared for by their mother, who guards them and brings them food in the form of small pieces of flesh. The chicks grow quickly, gaining their sight within a few days of their hatching and developing their plumage within a few weeks. No sooner do they leave the nest are they chased away by their mother.