Bone Bird

Brainstorming Bone Bird

Bone Bird Overview: Big birds, heavily armored. On each arm after the elbow, they have a tiny thumb-like appendage that supports a large talon the size of its forearm. Each Bone Bird Adult has an egg inside of them, and is constantly attempting to maintain it. They don't have defined sexes, the only difference between an adult and a non-adult is the egg within them. They can share DNA through basically kissing other Bone Birds.
Possible Names: Bone Bird, Terror Talon, Beak Beast/Brute
Bone Bird Young: These small bonebirds mostly have their beak grown in first, so their smaller limbs surround it. Appearing only 2 legged, they can scream and their arms fold out, almost giving the appearance it has 3 lower jaws and one massive upper jaw.
Bone Bird Brat: Its arms are bigger than a young BB, but it still hasn't fully formed its egg part. It stands a bit more upright.
Bone Bird Full: These Bone Birds are adults, large, powerful, scream, otherwise tough to deal with.
Terror Bone Birds: Much bigger than even adults, possibly even able to lay eggs larger than others or give live birth. They have more spikes around, and some may even have grown a new set of arms.

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Basic Information

Anatomy

The Bone Bird's upper beak and arm talons are what grow first. Its talons essentially extend from the upper forearm down to where the hand would be. They have a thumb-like appendage, though it doesn't do much.

Genetics and Reproduction

Bone Bird Adults can pop out an egg at any time, given enough food.

Growth Rate & Stages

The main difference between an adult and a non-adult is the ability to lay an egg.

Dietary Needs and Habits

A Bone Bird Requires a lot of protein, so its constantly hunting. A few times it might rip up something plant-like to nibble at a few bits, but not much.