Tachyeres leucocephalus References Tachyeres leucocephalus bird Ask Anything Homework Help 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: steamer duckbrachypterus, and T. leucocephalus are flightless and a bit larger than the mallard-size flying steamer duck, T. patachonicus. Steamer ducks are classified in a tribe of their own, Tachyerini, family Anatidae (order Anseriformes). Read Morebrachypterus, and T. leucocephalus are flightless and a bit larger than the mallard-size flying steamer duck, T. patachonicus. Steamer ducks are classified in a tribe of their own, Tachyerini, family Anatidae (order Anseriformes). Read More