Clara Cluck

Clara Cluck is a civilian living on the Timeless River in Kingdom Hearts II. She is one of the citizens working on the building of Disney Castle, and is a major opera singer, although her talent is questionable. She was never aware of the invading Heartless, and was plenty confused by such events as the Windows of Time and Pete chasing Pete. She is likely still alive somewhere in Disney Castle, although Sora never encounters her there. This theory is supported by her Journal Entry being in the present tense and Mickey and Minnie being referred to as King and Queen, and Timeless River is called Disney Castle.

Kingdom Hearts II
Orphan's Benefit (1934)

''A famous opera-singing hen. Clara's an old friend of King Mickey, Queen Minnie, and the other folks at Disney Castle.''