Each city has a lot of items and Pokémon to find by chatting with non-playable characters (NPCs). We will show you where you can trade for Chatot in Pokemon Brilliant Diamond and Shining Pearl.
Head to the Eternal City. There is an apartment building near the PokéMart. Talk to the guy on the first floor sitting next to the table on the left side of the room. He will want to trade your Buizel for his Chatot, nicknamed Charap.
If you don't have a Buizel, Route 205 and Valley Windworks are your first chances of getting one of your own. They are quite common, so you should get one in no time.
Buizel can be in your box during the trade and you will have a level 15 Chatot in your possession. It's a fun, music-themed bird Pokémon that could make your campaign team a little more unique. Chatot can come with Tangled Feet, doubling the evasiveness if confused, or Keen Eye which prevents accuracy from decreasing. We recommend Tangled Feet because status effects are terrible to deal with.
Chatot has normal / flying typing, making it perfect for a Pokemon title game story. He's just slightly slower than Staraptor and has a decent enough special attack stat to take advantage of his sound-based moves.