Morita is ranger of a nature preserve near Petalburg City. He came running after he heard
Ash Ketchum and his friends yell loud when they were awoken by May's Torchic's pecking. After he offered to assist them, they all went to the rangers house where he gave them some hot chocolate.
Morita explained to them that the terrible storm that occurred the night before destroyed many Pokémon nests and it unfortunately also separated many young Pokémon from their parents. He assumed that the little Swablu that
Ash Ketchum and his friends found must've been separated from its flock during the storm.
Morita realized that
Ash Ketchum and his friends were traveling to Petalburg City and offered to watch over the Swablu and take good care of it but they decided to stay around till it recovered so they could return it to its flock.
Morita then offered them lodging at his place while Swablu healed.
When Swablu was healed and was trying to fly,
Morita explained to
May that being afraid to fly after a traumatic event is actually quite common. He also told her that solving this problem can take quite a while.
Morita told them that he'd go try to find the Swablu's flock while they helped it get over its fear of flying. He ends up finding the flock at a nearby lake and he drives most of the way there until he got a flat tire. He went along on foot with
Ash Ketchum and his friends as he watched Swablu reunite with its flock.