This endangered sea duck is casual in the Pribilof Islands, and is most often seen in the depths of winter, during periods of pack ice formation. There are scant few records of this species during the tour season. Single birds were found on May 6, 1996, and October 23, 1998 on Saint Paul and during the summer of 2004 a young male lingered in the harbor of Saint George for the month of May. Males are easily identified by their pea green heads, all orange bill, and large white “goggle”. Females are paler than female Common or King Eiders, have heavily barred upperparts and flanks, and retain the males pale facial goggle. Look for this species in King Eider flocks early in the season.