Ruktor

Ruktors are a species of murvors used in the place of poultry by the human inhabitants of Anyar.

Physiology
Kiwi—shaped, flightless, murvors with black and purple feathers. They possess a parrot-like beak for digging roots and cracking nuts. Their eggs are blue-shelled, with a lighter blue interior.

Source

 * Destiny’s Crucible: Under An Alien Sky