Larus minutus -- Little Gull; Gaviota mínima, mouette pygmée. Alternate name on piece: Hydrocoloeus minutus [Little gull] Layout study, very rough, with color added, similar approach to that of Gould items 865-0866; at top: "11.20 1/2 4." Title in pencil by Sotheran, bookseller. Artist's name(s): Gould, John; Richter, Henry Constantine.