Here's why:
* Pidgeot is not a native Pokemon to the Hoenn region: Pokemon Emerald takes place in the Hoenn region, and Pidgeot is a Kanto Pokemon.
* No Trading: While you could potentially trade a Pidgeot from another Pokemon game into Emerald, it's not available to catch in the game itself.
How you can get a Pidgeot in Emerald:
1. Trade: You can trade a Pidgeot from another Pokemon game like FireRed or LeafGreen into Emerald.
2. Breeding: You can breed a Pidgeotto with another Pokemon to get an egg that will hatch into a Pidgey. You can then evolve Pidgey into Pidgeotto and finally into Pidgeot.
If you're looking to catch a bird Pokemon in Emerald, you might want to try catching a Taillow or Swellow instead, as those are native to the Hoenn region!