Prof. Birch

In the Games
Prof. Birch is the Pokemon Professor of Hoenn. He gives the player one of the three Hoenn starters (Treeko, Torchic and Mudkip) to the player in order to defeat a wild Poochena that is attacking the professor. Once you have defeated the Poochena, Prof. Birch will give the player the starter he/she used in the battle. In Emerald, when the player completes the Hoenn Pokedex, Prof. Birch asks the player to choose a Johto starter.

Treecko
Treecko is one of the three Hoenn starters. If the player chooses this Pokemon, then May will have a Torchic.

Torchic
Torchic is one of the three Hoenn starters. If the player chooses this Pokemon, then May will have a Mudkip.

Mudkip
Mudkip is one of the three Hoenn starters. If the player chooses this Pokemon, then May will have a Treecko.

Chikorita
Chikorita is one of the three Johto starters that the player may choose after completing the Hoenn Pokedex in Emerald.

Cyndaquil
Cyndaquil is one of the three Johto starters that the player may choose after completing the Hoenn Pokedex in Emerald.

Totodile
Totodile is one of the three Johto starters that the player may choose after completing the Hoenn Pokedex in Emerald.