Sula leucogaster -- Brown Booby, Bobo café, Fou brun. Alternate name on piece: Sula fusca [Brown gannet] Layout and bird position retained, but head of male very much changed in the published plate. Interesting sequence: Gould's sketch here, Richter's development at Gould item 1518, and the published plate. Artist's name(s): Gould, John; Richter, Henry Constantine.