You can't trade Pokemon between Pokemon Diamond/Pearl and Leaf Green/ Fire Red, although you can migrate Pokemon from Leaf Green/ Fire Red to Pokemon Diamond/Pearl using Pal Park, which is in Route 221. (Available after deafeating the Elite Four and Champion).
You don't trade, you simply Export from Fire Red and Pokemon, once on Diamond/Pearl can not be sent back to the original game. First insert Fire Red into the GBA slot on your Nintedo Ds, at the main menu for Diamond/Peal choose Import Pokemon, you will be asked to pick six Pokemon, (Pokemon with hm's can't be transfered btw) after choosing your six continue the game on diamond and go to the Pal Park on route 221, talk to the man at the counter he will let you in to catch the Pokemon that were transfered over, Don't worry the park balls are like master balls and will always catch the Pokemon on the first try. Once you have caught all the Pokemon time will be up and you will leave when you are done tell the man at the counter to transfer Pokemon to the PC, save and boom you have Your Firered Pokemon on Diamond/Pearl. This also works the same with Emerald, Ruby, Sapphire, and leaf green.
You can't. You can only trade Pokemon from Fire Red or Leaf Green to Pokemon Diamond or Pearl. It just doesn't work the other way around.
Leafgreen and Firered, Pearl and Diamond
IT IS NOT IN POKEMON DIAMOND OR PEARL BECAUSE IT IS ONE OF THE STARTING POKEMON IN LEAFGREEN!!!!! Migrate one from firered or leafgreen.
You can't get Zapdos on Pokemon Pearl or Diamond but you can migrate it from Pokemon LeafGreen or Pokemon FireRed.
Migrate from FireRed or LeafGreen. (Unobtainable in Diamond and Pearl.)
Special: Migrate from FireRed or LeafGreen. (Unobtainable in Diamond and Pearl.)
I think you can only pass Pokemon from Emerald to Diamond/Pearl
First, you have to trade your Pokemon Colosseum with Ruby/Sapphire (And I think Leafgreen/Firered too) Once you do that, you have to get the Pokemon to leafgreen/firered, and then migrate them to Pokemon diamond/pearl. For this though, you have to had beaten the games.
Special: Migrate from FireRed, LeafGreen, or Colosseum. (Unobtainable in Diamond and Pearl.)
Migrate it from LeafGreen, FireRed, Ruby, Sapphire, or Emerald
You mean Staravia? It is not on Firered,leafgreen..... its on Diamond and pearl.... for better answers,Bulbapedia.
Pokemon cannot be transferred from Diamond to Leafgreen. This can be done backwards, however as Ruby, Sapphire, Emerald, Firered, and Leafgreen Pokemon can be permanently transferred to Diamond, Pearl, Platinum, Heartgold, or Soulsilver.
You cannot catch Raikou in Pokemon Diamond and Pearl. To get Raikou in Pokemon Diamond and Pearl, you must trade for one from Pokemon HeartGold and SoulSilver where it can be caught or transferring from Pokemon FireRed and LeafGreen.