Common winter visitor to Asakawa River basin.There were many flocks of the species seen on Asakawa River up untilmid-90s, but the number has decreased to almost one-fifth or almost nonedepending on the places. Male has buff crown and forehead on chestnut head,rather like a Mohican hair-style rockfnfroller. On rare occasions, we see aform with green eye-stripe; it could be a cross bird with an AmericanWidgeon.
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