there are many ways the top 3 are trade them use a GameShark or action replay and finnaly u can defeat the Pokemon league and migrate them to pal park with fire red or leaf green
You can't, only in Platinum... Shadowscar I caught them.
Battle the legenary red than catch kyogre
Legendary Bird. Lucky catch. Try sleep
no.but you can trade it who someone who has it at firered leafgreen and yellow version......
it is a item that you obtain in pokemon soul silver that you use to catch lugia the legendary bird in the whirl islands.
Moltas: the fire legendary bird Pokemon the second strongest bird Pokemon
If you mean with the 3 legendaries, the legendary bird pokémon Articuno, Zapdos and Moltres: you can't catch them in Diamond. You can migrate or trade them, since they will be roaming Sinnoh in Platinum. You can also find them in FireRed/LeafGreen, HeartGold/SoulSilver and X/Y.
you get ruby and beat the game with fillin the pokedex.then you put the legendary birds into the PC and migrate them to pearl or diamond. it is fairly easy.
One of the last things to do is battle Red at Mt. Silver. You can also try to catch the legendary bird Pokemon throughout Kanto. You could also catch the legendary dog Pokemon throughout Johto and Kanto.
u cant catch the 3 legendary bird in the game(articuno,moltres, and zapdos) only lugia and ho-oh are in there
They do not. All the legendary birds are single form pokemon.
If you're talking about the legendary Pokemon Articuno, you have to trade it from FireRed or LeafGreen. If you're talking about Delibird, you have to trade it from FireRed.