Skyberia real
Some writing and ideas about Skyberians below
The planet Skyberia is a mountainous, cold climate. The birds there originated as predators, with a hunting method than involved crushing their prey from above. They're suprisingly slow for soemthing based around sky, typically foucising on stamina rather than speed. They have two sets of lungs, helping them breathe at high altitudes for a long time.
When a bird of this planet is stressed, their necks and head-wings puff up, as seen in one of the images.
Skyberian fashion involves a lot of ornate scarves, decorating the bird's long necks. It's also not uncommon to see jewellry hung from the head-wings. Traditionally, jewellry in this place symbolises the individual being calm and good at stress management.