The world these creatures are created for has a Mayan/Aztec jungle setting. I orientated on mythical creatures and gods while creating creatures for this fantasy world.
Kukulkan and Quetzalcoatl are deities in Mayan and Aztec culture that the designs are based on. They are depicted as winged and feathered snakes. Biologically that didn't make that much sense, so I warped their appearance to be the one of an archaeopteryx that the locals mistake as a feathered snake, because of their long bodies and tails. I called them quetzals, after the bird that inspired the original Quetzalcoatl from the Aztecs. The species is split into several subspecies that have adapted adequately to their environment.