Amazilia cyanocephala -- Azure-crowned Hummingbird, Colibrí­ corona azul. Alternate name on piece: Cyanomyia cyanocephala Layout drawing, birds well finished; 2 notes on form; Curtis 71-4183--Habrothamnus fasciculata. Title in pencil by Sotheran, bookseller. Artist's name(s): Gould, John; Richter, Henry Constantine.