Medium sulphur crested cockatoo Medium sulphur crested cockatoo
Medium Sulphur-Crested Cockatoo

Scientific Classification

Common Name
medium sulphur-crested cockatoo
Genus Species
Cacatua (referring to the bird's call) galerita eleonora (crest)

Fast Facts

This cockatoo is a large white parrot with a bright yellow crest, yellow under the wings and tail, and a hooked beak.
Approximately 44 cm (17.5 in.)
Approximately 404 to 602 g (14.4 to 21.07 oz.)
Includes seeds, nuts, fruits, berries, and some insects
Approximately 30 days
Clutch Size
2 to 6 eggs
Sexual Maturity
2 to 3 years
Life Span
65 or more years
Once found throughout Indonesia and the Sunda Islands, the sulphur crested cockatoo has been severely depleted and is now only found in small numbers on some islands and extinct on others. Sumba of the Lesser Sunda Islands has the largest population.
Found in forests, scrubs and grasslands
This cockatoo's population is declining and is currently estimated to be between 2,500 to 9,999 individuals.
IUCN: Critically Endangered
CITES: Appendix II
USFWS: Not listed

Fun Facts

Both parents take part in incubating the eggs.

Cockatoos can mimic the sounds of other animals, including people!

Cockatoos can hold their food in one foot and break pieces off of it with the other foot.

Cockatoos live in small, loose flocks.

They are very gregarious and quickly learn to mimic. These birds also have a very shrill cry.

Ecology and Conservation

Cockatoos in general are very gregarious and quickly learn to mimic. These birds also have a very shrill cry.

They aid in seed dispersal through their eating of fruit.

This species is very popular in the pet trade.

The U.S. Wild Bird Act forbids the commercial import of any bird listed by CITES as threatened or endangered (Appendix II and I) which includes most parrots.


Austin, G. Birds of the World. New York. Golden Press, Inc., 1961.

Decoten, A.E. Handbook of Cockatoos. Neptune City, NJ. T.F.H. Pub., 1981.

Diefenbach, K. The World of Cockatoos. Neptune City. NJ. T.F.H. Publications, 1985.

Forshaw, J.M. Parrots of the World. Neptune City, NJ. T.F.H. Publications, 1977.

Gotch, A.F. Birds - Their Latin Names Explained. UK. Blandford Books Ltd., 1981.

Simpson, D.P. Cassell's Latin Dictionary. New York. Macmillan Publishing Company. 1959.

BirdLife International 2018. Cacatua sulphurea. The IUCN Red List of Threatened Species 2018: e.T22684777A131874695. Downloaded on 03 March 2020.

Photo Credit: Cacatua_galerita_eleonora_-_pet. jpg. Source: Wikimedia Commons. Image by: lxectrona (talk). Year Created: 20 March 2007. Website: