You have to have the HM Surf and when you do go out of the Rock Tunnel (the exit that's close to Cerulean City) and surf and go to the water nearby, Surf south on it and you should come to the Power Plant, go inside and work your way through it and at the end Zapdos should be there.
You have to trade it from Firered/Leafgreen in Pokemon firered/leafgreen you can find zapdos in power plant, but you need surf to get there.
I guess Zapdos
trade from leafgreen
In the Power Plant I know, But how?
zapdos moltres articuno and mewtwo
Zapdos isn't in Ruby/Sapphire. You have to trade it, if you want it in Ruby/Sapphire. The only generation 3 games that have Zapdos are FireRed/LeafGreen.
You can't get Zapdos on Pokemon Pearl or Diamond but you can migrate it from Pokemon LeafGreen or Pokemon FireRed.
Well you can Easily get moltres zapdos and articuno
Zapdos is only in firered, leafgreen, red, blue, yellow, green, xd gale of darkness.
You can find Zapdos in Power Plant only once so if you let Zapdos fly away or if you defeat it you can never find it again in LeafGreen.
The only way to get Zapdos in R/S/E is either trade it from FireRed, LeafGreen, or XD after obtaining it in game or through an event. Or you could trade with a friend who has a Zapdos.
In Heartgold and Soulsilver have all 16 badges go talk to zapdos at the Power plant same thing with LeafGreen and Firered have 8 badges and talk to zapdos