>>39998383This. It learns Fly, not Bounce, and in the 3d console games you see how it flies, a la Geppo, kicking the air so hard you stay aloft.
Which brings us to reason #2 for being flying: Airbending. Which is also part of why it can run so fast.
But yeah, learns Fly, learns Brave Bird, Learns Sky Attack. It just doesn't learn any wing moves because they're kiwi tiny.
But Golurk, Genesect, Drifblim, Drampa, Celesteela, and Arceus all learn Fly with no wings too.