black-headed duck References black-headed duck bird Ask Anything Homework Help Also known as: Heteronetta atricapilla 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: anseriform/ Reproductive behaviourOnly one species, the black-headed duck (Heteronetta atricapilla) of South America, is an obligate nest-parasite, always laying in the nests of other species. Read MoreOnly one species, the black-headed duck (Heteronetta atricapilla) of South America, is an obligate nest-parasite, always laying in the nests of other species. Read More