Zapdos can't be found in Emerald, but you can trade it to your game or trade it with someone who already has it. Zapdos can be found in FireRed/LeafGreen at the Power Plant. This is located at route 10 in Kanto.
If you want a Zapdos on Pokemon Emerald,you'll need to trade from Fire Red or Leaf Green. Or use a Gameshark.
You will need to trade one from Firered, Leafgreen, or Pokemon XD:Gale of Darkness to Emerald.
You don't. Moltres, Zapdos and Articuno are not in this pokemon generation.
Pokemon Emerald Enhanced is a hack of Pokemon emerald. The most special thing about it is that all Pokemon are available somewhere in the game. No trading or gamesharking is necessary. Toward this end, a few new areas have been added as well. As a final note, the three starter Pokemon for this hack are Zapdos, Articuno, and Moltres.
to catch zapdos in pokemon black you have to have every legendary pokemon