Greenland mallard References Greenland mallard bird Ask Anything Homework Help Also known as: Anas platyrhyncos conboschas Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: mallard…or subspecies, only one, the Greenland mallard (A. platyrhynchos conboschas), shows the strong sexual difference in plumage; all others (both sexes) resemble the hen of A. platyrhynchos platyrhynchos. Read More…or subspecies, only one, the Greenland mallard (A. platyrhynchos conboschas), shows the strong sexual difference in plumage; all others (both sexes) resemble the hen of A. platyrhynchos platyrhynchos. Read More