Noble rusticity

Exploration Stage: Greenhouse
From: Monk
Description: That girl, Juliet, is right. The nobility of Miss Peacock's heart will tell you which bird she was turned into. The most sublime quality she possesses is a noble simplicity. That princess does not often show that side of herself, though. According to this encyclopedia, such a quality is found in the "white-bellied starling." Could you look for it in the "greenhouse?"
Completed: The "white-bellied starling" is a modest and beautiful bird. Look at these shining feathers. Let's keep it here with the other candidates. This bird may well be the Peacock.