You can't catch one at all in Silver. You'd have to trade one from Red/Blue/Yellow.
Its weird but you can't catch articuno in silver get one from red, blue or yellow.
go to seafoam island search for articuno wich is hard to find articuno so good luck
Zapdos=Power plant Moltres=Mt.Silver Articuno=Seafoam islands
to catch zapdos you need to beat red and at the iron works zapdose will be out side. articuno is at seafome island.
Maybe go catch Zapdos and Moltres? its an open ending. do whatever you please.
You must go in kanto at the seaform island and in the cave you will find it.
In Diamond and Pearl you can't catch Articuno.
catch Zapdos or Articuno
you don't catch articuno in crystal but you can get one from red, blue or yellow.
The answer is here:How_do_you_catch_an_articuno_easily
You can catch Articuno in the Seafoam islands (Kanto), Zapdos at the Power Plant (Kanto), and Moltres in Mt. Silver (Johto).
You cant catch Articuno in Pokemon Crystal, only in Blue, Red and Yellow. But i am not sure about that.