There are 3 roaming legendary bird in my Platinum which already low on HP, I'm ask cause I'm afraid they have Roost and use it when I sent Wobbuffet... please help me, they are Articuno, Zapdos, Moltres.
Articuno - Agility - Ice Beam - Reflect - Roost
Zapdos - Charge - Agility - Discharge - Roost
Moltres - Flamethrower - Safeguard - Air Slash - Roost
Roaming Pokemon (Bulbapedia)
No, none of them have Roost. Here are their movesets:
Articuno: Ice Beam, Agility, Ancientpower, Reflect Zapdos: Ancientpower, Agility, Charge, Discharge Moltres: Ancientpower, Flamethrower, Safeguard, Air Slash
there is an easy way to find out their moveset. go to Roaming Sinnoh in Pokemon locations tab. you can see that all three of them are lvl 60. then by going into their pokedex in this website and selecting gen 4 on moveset, you can find out their moveset! I used this technic on legendary beasts and tornados.