When you pass a certain event (Iunno what it is) Prof. Oak will say that Articuno is roaming the wild. Find it on the poketch app marking map*
*When you get a certain amount of gym badges, go to the poketch company in Jubilife city and you'll get the app.
u can only get articuno in Pokemon firered, leafgreen and Pokemon Platinum u can't get articuno in emerald
You can find articuno in the poketch marking app when he's all around
You can get Articuno in Pokémon Red, Blue, Yellow, Platinum, HeartGold and SoulSilver, in Red, Blue, Yellow, HeartGold and SoulSilver, you can find Articuno residing in the Seafoam Islands. In Pokémon Platinum, Articuno starts roaming around the Sinnoh region once you've spoken to Professor Oak in his place in Eterna City after you have received the National Dex and beaten Cynthia.
Ho-Oh can't be found on Platinum. The legendaries of Articuno, Moltres, and Zapdos can be found though.
articuno,zapdos,and moltres
No,But You Can Get Moltres,Zapdos,And Articuno.
Then he is gone and you will have to trade with someone else to get him.
get the national dex then see prof oak in eterna city he'll tell you about articuno zapdos and moltres they will run around randomly use marking map to find them but dont use fly!
get them throgh pal park
Articuno Zapdos Moltres
Sorry, you can't! That legendary Pokemon isn't in platinum. you can get Zaptos, Moltres, and Articuno, however!!!
I'm sorry, but articuno isn't in pokemon pearl, it's only in pokemon platinum (talking about the ds games)