The four curses of the Kenku

Long ago, the Kenku plotted to steal something from the Dukes of Air. It is unknown what that something was, but the punishment was harsh and swift. Each of the dukes imposed their own punishment upon the Kenku:

1. Icosiol banished the Kenku from the Elemental Plane of Air, forbidding them to ever return again
2. Nadroc took the Kenku's wings, so they could not fly
3. Qadeej took the Kenku's voices, so they could not tell others what they saw. They retained their ability to mimic sounds, but no longer have voices of their own
4. Zosiel took the Kenku's "spark", so they could no engage in creative activity (lifted when Zosiel died in Session 15: The death of a demigod )