Ruddy Duck.
In the list of Top 10 Most Beautiful Ducks In The World, Ruddy duck is at no 5. This is the 5th Most Beautiful Ducks In The World and also on our list. The ruddy duck is very beautiful bird in the world. They commonly found in North American Areas and some parts of South America. They belong to the family of stiff-tailed ducks. These are only ducks in which male molt in the spring season to attract the female for the mate.