Continue to do the raid battles for the best chance to obtain a Shiny Rufflet. Players can then give Rufflet enough candy to evolve it into a Braviary. This is one of the stronger Flying-type Pokemon in the game and one of the relatively newer ones so players might want to focus on...
If you need candy from a specific Pokémon to evolve it or power it up, going to a nest gives you the chance to regularly catch them in greater quantities than random spawns would ever allow. If you're trying to catch enough of a specific type of Pokémon to get your medals, be it...