in the seafoam islands in kanto
bottom of seafoam island
Articuno
you get it at the seafoam islands in kanto
Yes, all 3 of them (Articuno, Zapdos and Moltres) will be in Pokémon HeartGold and Pokémon SoulSilver.
In Pokemon HeartGold and SoulSilver, you can find Articuno in the Seafoam Island cave. There is a small series of puzzles you have to solve, but eventually you'll get to Articuno which is at level 50
There is no location in Johto to catch Articuno. You will have to wait to get to Kanto and the Seafoam Islands on Route 20.
Bring it to level 78.
no
You can get an Articuno in Pokemon black by trading it from Pokémon Heartgold/Pokémon Soulsilver, you have to have completed the main story on black first and the Pokemon is not allowed to have any HM's.
in the second island of seafoam islands. its on the right of the fire gym
articuno is at the bottem level of seaform islands: south of fushia city and east of cinnabar island on kanto
yes go to seafoam islands and you have to have all 16 badges
yes, MOLTRES is in Pokemon soulsilver and heartgold. So are the other two birds articuno and zapdos