Adult DescriptionStocky, large-headed, dark seabird. Breeding adult all black except for white face and long golden plumes curling over back of head and neck. Bill large and red-orange, with a bright-orange yellow plate over the base. Nonbreeding adult has dark gray face with no head plumes or bill plate.
Immature DescriptionResembles nonbreeding adult, with dusky eyes instead of yellow.