Pachycephala falcata Ornithology Ornithological illustration Drawing depicting: Pachycephala rufiventris -- Rufous Whistler. Alternate name on piece: Pachycephala falcata [Lunated pachycephala] Birds quite well drawn, some traces of Gould's sketch remain, as well as his later pencil marks calling for shortening of body. Gould, John , 1804-1881 (artist) Richter, Henry Constantine , 1821-1902 (artist) 1848 StillImage electronic image/tiff ku-gould:20571 https://digital.lib.ku.edu/ku-gould/20571 Gould 1313 Birds of Australia--https://digital.lib.ku.edu/ku-gould/14902--Ellis Aves H141 This work is free of known copyright restrictions.