RWBY Theo's Semblance brings him closer to his faunus roots. His wings are strong enough to carry him and enable him to partake in quick and agile flight maneuvers (they are based on the dexterity-favoring wings of the white tern), but he also gains other avian features. His skin becomes even lighter, only arms and calves gaining a weirdly blue-black color, and he gets the dark bead-eyes of a bird.

He's very self-conscious about those traits...