Zapdos will be at the Power Plant. Make sure to save before battling it to ensure success and not a FAIL at catching it. This is a freaking legendary Pokemon you won't be seeing again in the game, so catch it, don't KILL IT!
I guess Zapdos
You can't get Zapdos on Pokemon Pearl or Diamond but you can migrate it from Pokemon LeafGreen or Pokemon FireRed.
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.
trade from leafgreen
zapdos moltres articuno and mewtwo
Well you can Easily get moltres zapdos and articuno
Articuno, Zapdos, moultress and Ho oh.
capture zapdos with an ultra ball
He's(she's) in the power plant(level 50)
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.
Zapdos, Articuno,Moltres, Mewtwo,Entei,suicune,and Riakou
zapdos, at the power plant down from the rock tunnel you have to surf there