>>13176123>2: it's a flightless bird.Clearly it's not, since it learns fly and is part flying.
Pokedex entries from R/B say "A bird that makes up for its poor flying with its fast foot speed. Leaves giant footprints."
And Y says "Its short wings make flying difficult. Instead, this Pokémon runs at high speeds on developed legs."
So flying is difficult, but possible.
If anything, it should be part psychic.
D/P/Pt/B/W: "The brains in its two heads appear to communicate emotions to each other with a telepathic power."
