Medium Sulphur-crested Cockatoo (likely C. g. elenora)
Credit: © iStock Photo
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Sulphur-crested Cockatoos have been known to mob raptors and have been seen dropping leafy twigs onto a pair of Bat Hawks in an attempt to drive them away!
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Species Profile
Genus:Cacatua
Species:galerita
| Size: |
Adult Weight: |
| 50cm (19.5 in) |
815-975g (28.5-34.1 oz) |
Races including nominate:five:
C.g. galerita, C.g. queenslandica, C.g. fitzroyi, C.g. triton, C.g. eleonora
Colourization Adult: C.g. galerita: both adults generally white, washed with pale yellow on ear coverts and bases of feathers of cheeks and throat; yellow crest; eye ring white. In male, eye dark brown, in female, red/brown. Bill slate grey.
C.g. queenslandica: both adults as in
galerita but smaller in size; bill broader, depressed and ridged.
C.g. fitzroyi: both adults as in
galerita but with minimal yellow on ear coverts and feathers of cheeks and throat; broader, very ridged bill. Eye ring pale blue.
C.g. triton: both adults as in
galerita but with wider crest feathers. Eye ring blue.
C.g. eleonora: both adults as in
triton but bill smaller.
Colourization Juvenile: C.g. galerita: like adults but sometimes with scattered feathers washed with pale grey. Eye pale brown.
C.g. queenslandica: as in adults.
C.g. fitzroyi: as in adults.
C.g. triton: as in adults.
C.g. eleonora: as in adults.
Call: Very loud, raucous, creaky sounding screech ending in upward or downward inflection. Also whistling. In alarm harsh gutteral screeches and shrill squawks. Perched birds may also produce low murmuring. Immatures emit a quiet, high-pitched whine, and a grating creaky call.
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Recent Academic Research: Google Scholar - search results
Content Sources:
Article "The Greater Sulphur-Crested Cockatoos," by S. Dobbs and C. Highfill http://www.birdsnways.com/cockatoo/sc.htm
Busch Gardens/Sea World Animal Adventure Camps http://www.seaworld.org/animal-info/animal-bytes/animalia/eumetazoa/coelomates/deuterostomes/chordata/craniata/aves/psittaciformes/greater-sulphur-crested-cockatoo.htm
BirdLife International http://www.birdlife.org/datazone/species/index.html?action=SpcHTMDetails.asp&sid=1399&m=0
CITES http://www.cites.org/eng/resources/species.html
Internet Bird Collection http://ibc.lynxeds.com/
ML Media Collection Catalogue 140113, Sulphur-crested Cockatoo Cacatua galerita, Pratt, H. Douglas, Palau, Apr. 8 2007, Cornell Lab of Ornithology
Parrots: A Guide to Parrots of the World, Juniper and Parr, 1998.
Parrots of the World, Forshaw and Cooper, 1989.
Parrots of the World, Forshaw, 2006.
Parrots in Aviculture, Low, 1992.
Psittacine Aviculture, Schubot, Clubb and Clubb, 1992.
Avian Pediatric Seminar Proceedings, various authors, 1988.