Prioniturus discurus -- Blue-crowned Racket-tail. Alternate name on piece: Prioniturus discurus ("discosurus" on plate) [Little racket-tailed parrot] Faily finished drawing; 2 notes on form, one on color; at head of sheet: "A--12--4937" (Curtis reference?). Artist's name(s): Gould, John; Richter, Henry Constantine.