Does anyone remember and old short that aired on either The Movie Channel or Showtime in the early 90s. It could be foreign animation; it told the story of a goddess that dropped her ring at the bottom of a lake. A demon would not allow her to get it back so a brave type of duck swam to the bottom and retrieved it. The goddess gave the duck species a white circle around its neck as a show of gratitude, this explaining why that species has that white feathery ring. It was gorgeous animation.