When Ash became a Frontier Brain, Pidgeot returned to Ash's party, leaving its flock in the capable wings of its eldest son, now a Pidgeotto, and now lives with his other Pokémon at the Battle Colosseum.
When Ash became a Frontier Brain, Lapras stepped down as leader of its school to return to Ash's party. It now lives with his other Pokémon at the Battle Colosseum.