Wilbur was a trainer of Pidgey, who told stories about Pidgey flying in space. Only Orville was determined enough to try, while the others began on gaining weight. With the heroes' and Team Rocket's help, Wilbur witnessed as Orville flew high up in the sky, beyond the atmosphere. Wilbur fell down and pierced the balloon, but the other Pidgey easened the fall of the balloon. Wilbur was grateful for assistance, while Wilbur's other Pidgey began training to fly.
Orville is Wilbur's Pidgey, who heard its master's tales about other Pidgey, who flew in space. Orville was inspired by the story and wanted to do the same.