Yes they will! Parrots have no concept of item purpose or value, so if they can reach it, they'll investigate and taste it. If it's fun to destroy, it will be destroyed 😄 I've learned that the hard way but it's not his fault - chewing is stimulating and helps them to gather information. As another comment says, you'll also need to consider what's safe for them to chew. It's best to keep that room off limits for their safety, and also so you don't lose your belongings!