Lophodytes cucullatus -- harle couronné; Hooded Merganser, Mergo cresta blanca. Alternate name on piece: Mergus cucullatus [Hooded merganser] Layout drawing, probably over Gould's sketch, color added; several sketches in margin, apparently not relevant; top right corner: notes on color and form. Title in pencil by Sotheran, bookseller. Artist's name(s): Gould, John; Richter, Henry Constantine.