This is another friend's Pathfinder character, a chocobo oracle. She will one day be a gold chocobo, but she's still young enough that she hasn't unlocked that part of her potential yet. Eepa, being an alchemist, named her Leadfeather, for she knew that this chocobo's feathers would one day become gold-colored.
Actually, the traditional sounds of a chocobo are "kweh" or "wark". Though, I suppose your idea could be combined with it. "Quark", perhaps?
...Oh good heavens, how has it taken me this long to realize? Cross-breeding ducks and chocobos shall allow us to discover the ultimate secrets of subatomic particles!
...I am a nerd, yes.
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Puppydear
quack