copper-and-blue

Updated: June 19, 2025

I found two varieties: the small brown duck with a grey head; and a magnificent variety, as large as the Muscovy, having a copper-and-blue coloured tinselled back and wings, with a white but speckled head and neck. This duck had a curious peculiarity in a fleshy protuberance on the beak about as large as a half-crown. This stands erect, like a cock's comb.

Sir Samuel White Baker - The Albert N'Yanza, Great Basin of the Nile