He was originally a human before being sucked into the Constant, where there, They turned him into a harpy.

He does indeed greet Wilson as a harpy, though he had much more lavish plumage in the beginning

Something dramatic like that…

When in reality, he’s much more plain and less flashy as you see me normally drawing him. This was merely his projection from the Throne, and through adventure mode, he gets more drab with each world progression