Birds

Birds were creatures that existed in Rythulia during its early history. The are commonly presumed to be extinct.

Rythulians were designed with birds in mind.

Speculation
The bird sound that gives the Chirp its name sounds the same as the one these birds made, suggesting that Wayfarers may be Rythulians that were given the power of the birds, or that Wayfarers and birds were even merged into the same creature.