I Turned into a Golden Eagle

Reborn as a golden eagle, commonly known as the "eagle doomed to spend its life in prison." He thought soaring through the skies and flying free would be all there was to his eagle life. But a golden downpour changed the whole world. Spiritual qi revival, energy surging, all things evolving, ancient ruins opening, and foreign races arriving... (This book has no human transformations or human avatars. If that's not your thing, don't read it, and don't complain.)