No, Only in Fire red and Leaf Green
No, you will need to trade for them or transfer them via Pokemon Bank to get them in Pokemon Omega Ruby and Alpha Sapphire.
The only way to get Moltress is to trade him from a different game or from the GTS.
moltress
you get it in Mt. Ember
On top of mt ember.
Moltres is at the top of Mt. Ember.
articuno , zapdos or moltress
you can but if you don't you miss out on ledgenay Pokemon jirachi,suicune,and moltress
Pokemon 146 in the national pokedex is moltress and Pokemon 146 in the sinnoh pokedex is uxie. have fun!
go to the top of the mt. ember on one island.
no
top 3 are 3. articuno 2. moltress 1. zapdos