Hey all. So Serebii have posted that you can obtain Pokemon such as Dragonite and Charizard in route 2 as rare spawns. Before I start catching loads of Pidgeys, etc do you need to be riding a fly able Pokemon in order to encounter Dragonite/Charizard once you've amassed a large enough chain or can they be encountered as normal like Bulbasaur in Viridian Forest?