The term 'Fabled Bird' can be broken down into three crossword solutions: ROC (3 letters), PHOENIX (7 letters), and GARUDA (6 letters). The ROC is a mythical bird of enormous size and strength from Arabian mythology. The PHOENIX is a long-lived bird that is cyclically regenerated or reborn, associated with the sun, death, and resurrection in Greek and Roman mythology. The GARUDA is a large mythical bird or bird-like creature that appears in both Hindu and Buddhist mythology. All three of these fabled birds are associated with strength, power, and immortality.