Nightingale
Captivated by its sweet song, an emperor takes a nightingale into his palace as his companion. But when the emperor shows more interest in a bejeweled mechanical bird, the nightingale flees. It returns only when the lonely emperor sees how foolishly he has behaved.
Genres: Animation
Directors: Michael Sporn
Writers: Maxine Fisher
Homepage: http://www.michaelspornanimation.com/SourceFiles/Credits/Nightingale/Nightingale.html
IMDB: tt0239718