What is the name and number of the episode when ash catches Noctowl?

Ash catches Noctowl in the episode titled "The Battle of the St. Anne," which is the 18th episode of the Pokémon: Indigo League series. In this episode, Ash and his friends encounter a flock of Noctowl, and Ash successfully captures one after demonstrating his skills as a trainer. This moment marks a significant addition to his team as he continues his journey in the Pokémon League.