Pezoporus wallicus -- Ground Parrot. Alternate name on piece: Pezoporus formosus [Ground parrakeet] Narrow preliminary sketcxh (12 x 42 cm) in the left vertical margin of a page of text for Turdus erythrogaster; position of birds and much of landscape altered in published plate. Artist's name(s): Gould, John; Richter, Henry Constantine.