The role of sulphur-crested cockatoos in the ecosystems they inhabit is not well documented. They feed on seeds and nuts and may play a role in seed dispersal. (Berra, 1998; Dobbs and Highfill, 2003; Perrins, 1990)
- Berra, T. 1998. A Natural History of Australia. San Diego, CA: Academic Press.
- Perrins, D. 1990. The Illustrated Encyclopedia of Birds. New York: Prentice Hall Press.