Long-Tailed Duck.
In the list of Top 10 Most Beautiful Ducks In The World, Long-tailed duck is at no 6. This is the 6th Most Beautiful Ducks In The World and also on our list. The long-tailed duck is beautiful birds in the world. The size of this pretty bird is medium. They like to live on the seaside (coasts). They like to eat mollusks and small fishes. These are good divers also and can dive up to the depth of 60 meters about 200 ft.