You get him in the Power Plant.
With a Poke Ball.
Be crafty
you have to trade from red blue or yellow. zapdos is not catchable in Pokemon silver.
Zapdos can be found on Mt. Thunder, Peak (3F).
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It is not available in Pokemon Crystal. You will need to trade for it from Pokemon Red, Blue, or Yellow.
No, you are unable to get a Zapdos in Pokemon Crystal. The only possible ways are if you cheat with game shark codes or if you trade it from Pokemon red, blue, green or yellow
Its in the power plant east of Cerulean.
Zapdos Articuno Moltres Mewtwo Mew
In Pokémon Blue you can find Articuno (on the Seafoam Islands), Zapdos (at the Power Plant), Moltres (in Victory Road) and Mewtwo (in the Cerulean Cave).
Outside the Power Plant after you defeat Gary/Blue.
Zapdos is only in firered, leafgreen, red, blue, yellow, green, xd gale of darkness.