Kilmaulsi precursor species

A species of winged avians were native to the planet Kilmaulsias in the Vorzyd Cluster, where they eventually evolved into the sentient Kilmaulsi species. Members of the species had feathers covering some areas of their bodies and were able to fly using their wings, although the Kilmaulsi lost both the wings and the flying capability and retained only some areas of feathers.

Behind the scenes
The species were first mentioned in Geonosis and the Outer Rim Worlds, a role playing supplement released by Wizards of the Coast in 2004 for their Star Wars Roleplaying Game.