Pierre is a fictional character from One Piece, known as the loyal bird mount of Gan Fall in Skypiea. He is a large, white, horse-like bird called a bird of prey that can transform into a Pegasus-like form through the power of the Rumble Ball. Pierre serves as transport and a combat ally, helping Gan Fall in battles and during travel across the sky islands. He is a supportive side character rather than a major plot figure, but he plays an important role in Skypiea’s aerial setting.