Iwan Setiawan (PHPA/BirdLife International - Indonesia Programme - Laporan No. 6, 1996), published a report on 'The Status of Sulphur-crested Cockatoo (Cacatua sulphurea parvula) on Nusa Penida, Bali and Sumbawa, West Nusa Tenggara. Below article cites the relevant information to Nusa Penida, and omits information on Sumba and Sumbawa.
The Wallace Line
The small island, Nusa Penida, is of considerable zoogeographic interest because of its position in the Lombok Strait.
Below article on hunting on Nusa Penida was published in a German magazine called 'Gartenlaube' (Gazebo) in 1941 by Lindner. The exact name of the author proves hazardous, as his first name is not given anywhere in mentioned source.