The Thunderhawk is a Level Five Spirit Bird. Once it matures, it possesses the formidable might equivalent to a Heavenly Human Realm Cultivator. Some with exceptionally remarkable talents and bloodlines could even transcend their limits, advancing to become a Level Six, or even a Level Seven "Thunderhawk King".
These Thunderhawks settle at the Welcoming Peak, the gateway to the Sacred Land for a part of their lives. Whenever a disciple of the Purple Xiao lineage returns, they could ride on a Thunderhawk to fly back home, a method much faster than riding on the Sacred Land's flying carriages.
Unfortunately, unlike the gentle nature of the Spirit Tortoise, the Thunderhawks have a stubborn temperament. Though they inhabit the territory of the Purple Xiao lineage, accept their offerings, and agree to carry their disciples as mounts, few disciples can truly tame them and turn them into their spirit pets.