Mandarin Duck (Aix galericulata) at Sylvan Heights Bird Park, Scotland Neck, NC. © 2011 Kenneth R. Sheide

Detail of Mandarin Duck (Aix galericulata), Sylvan Heights Bird Park, Scotland Neck, NC. © 2011 Kenneth R. Sheide

White-headed Duck (Oxyura leucocephala), Sylvan Heights Bird Park, Scotland Neck, NC. © 2011 Kenneth R. Sheide