Mandarin duck

 

The mandarin duck (Aix galericulata), or just mandarin, is a perching duck species found in East Asia. It is medium-sized, at 41–49 cm (16–19 in) long with a 65–75 cm (26–30 in) wingspan. As the other member of the genus Aix, it is closely related to the North American wood duck.

                                                                                      quoted from wikipedia

 

It called the mandarin duck couple a good couple of relationship in Japan .

How do you call in your country?

 male

female(right,below)