lugia,ho-oh and altaria there might be more
Articuno is not able to learn the move Sky Attack. It can only be taught Sky Attack with the TM 43 in Pokemon Red and Blue. Sky Attack is no longer TM 46 in later games so it's impossible for Articuno to learn Sky Attack outside of Pokemon Red and Blue.
There is only one way . youre Pokemon has to learn it at a certain level . there is no TM for sky attack.
Lugia learns Sky Attack at level 99.
its in blackthorn city, the only Pokemon that can learn it is togekiss! Or some other Pokemon...
I think 73
If you trade pidgey to Pokemon xd gale of darkness there is a move tutor in agate village that can teach sky attack.
As of Pokemon Omega Ruby and Pokemon Alpha Sapphire, you can take Staraptor to the Move Tutor in Battle Resort and teach it Sky Attack. For Generation IV, you can teach Staraptor Sky Attack from the Move Tutor in Pokemon HeartGold and SoulSilver.
Pigeot does not learn sky attack at all.
Gliscor can't learn sky attack
It learns it at Level 1. Yup.
Zapdos never does learn Sky Attack. The best ways to get it to learn it, is to trade it over to either Pokemon XD or Leaf Green or Fire Red. You can also just use GameShark, I am actually looking for an easier way myself.
he learns sky attack at level 70