zapdos: mt.thunder
moltres: mt.blaze
articuno: frosty forest
if one of them joins your rescue team, you will automatically get their friend area
groudon
All except the 4th gen ones
You can get all the birds in Pokemon Blue Rescue Team. You just have to keep beating then until they join you. Hope this helped ^-^
the same as moltres and articuno, you get it automatic. its the legendary island, you need all three Pokemon's for the sliver trench were lugia is.
keep on battling them and buy all friend areas
yes all Pokemon evolve in Pokemon mystery dungeon blue rescue team after you beat Rayquaza and legendary Pokemon don't evolve.
Yes, you can recruit a legendary Pokemon that's 4 Star in size if you have one teammate with you in Pokemon Red Rescue Team. Anovia recruited Ho-oh with a Castform next to him. Also, he recruited Suicune with a Wartortle next to him.
If you are talking about Pokemon mystery dungeon red rescue team or Pokemon mystery dungeon blue rescue team then: Talk to alakazam, he'll mention something about the 3 great birds. once you go to them they will give you a stone which allows you into a new dungeon which has lugia.
All can join your team
Curently, Pokemon Mystery Dungeon: Blue Rescue Team is out and available all around the world.
evolve all of your pokemon,recruit all the legendary pokemon.
No there isn't one