Trade and get the three starters
Swellow/Flygon You can keep both or keep one both can learn fly
Raichu with Volt Tackle/ Glailie
Dophan or Heracross
I see no reason in Swello in the team IMO when you have a Flygon and 90% of the time i usually spam Fly or Bravebird with my bird i think Swellow Learns it