Eurasian wigeon

It's crazy how far ranging some birds are! I didn't realise you found Eurasian wigeons in Japan either until I saw your spotting :D

Yes, they are Eurasian Wigeons.

Sorry the link has so many other birds on it... but scroll down a bit to wigeon, you can see a bunch of photos, and a link to the Wiki page (which has only one photo, that's why I chose the other page!)

Lovely photos! I actually think that the birds in this spotting: http://www.projectnoah.org/spottings/7636844 are the same kind, so maybe you could add some of the photos from there to this one to make it into one spotting! This kind of duck is a wigeon, very beautiful photos you've got of them too! The feathers are beautiful :) Nice!