Belvide Birder
Member
I found this drake Ruddy Duck at Belvide today which I presumed was the dark headed varient (ferruginea) There has been another suggestion that it might be an Argentine Bluebill. However I feel that the black on the neck is not extensive enough for Bluebill and the Belvide bird had 2 bumps on top of the crown as in a breeding male Ruddy Duck, There is no mention of this feature in the wildfowl book (madge/burn) for Bluebill. Any further comment on this bird would be welcome.



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