This is a drake Harlequin Duck (Histrionicus histrionicus) that is in the middle of molting into that gorgeously patterned blue breeding plumage. It may not be winter yet but they do enjoy wintering on rocky, surf-battered coastal shores like this one here at Stratford Point in Stratford, Connecticut. Between the fact it is doing nonstop preening as its fresh feathers come in, thus making a long uncertain flight an unpleasant notion, and the quality of the habitat here we feel like we stand a good chance of keeping this bird for a while. Fingers crossed! He will be a real stunner soon.
Scott Kruitbosch
Conservation & Outreach Coordinator