5670652 Page 20. Natural size. April Golden Whistler Pachycephala pectoralis, male, 1791-92 (w/c) by Unknown artist, (18th century); Mitchell Library, State Library of New South Wales; (add.info.: Collection 27: Drawings of birds chiefly from Australia, 1791-92. The sketches are titled, most with added notes giving the month bird was sighted and its size.); Mitchell Library, State Library of New South Wales.