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Yellow-crested Cockatoo  

Also Known As: Lesser Sulphur-crested Cockatoo, Dwarf Sulphur-crested Cockatoo, Timor Cockatoo, Citron-crested Cockatoo (C.s. citrinocristata)
 
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Yellow-crested cockatoo perched on tree

Credit: (c) Jonker/Innemee Araproject | http://www.araproject.nl
 
photos Photos videoVideo 1
Video 2
 
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Did You Know?
The Yellow-crested Cockatoo may also tackle quite large coconuts (Cocos nucifera) for food.

Species Profile
Genus:
Cacatua

Species:
sulphurea

Size: Adult Weight:
33cm (12.8 in) 308-380g (10.8-13.3 oz)

Races including nominate:
four: C.s. sulphurea, C.s. parvula, C.s. abboti, C.s. citrinocristata

Colourization Adult:
C.s. sulphurea: both adults white plumage with yellow at bases of feathers of head and underparts; bright yellow crest and ear coverts. Eye ring soft white. Eye dark brown in male, brown/red in female. C.s. parvula: both adults as in sulphurea, but yellow ear coverts paler and feather bases less yellow where mentioned. C.s. abbotti: both adults as in parvula but larger in size. C.s. citrinocristata: both adults crest and ear coverts golden orange.

Colourization Juvenile:
C.s. sulphurea: as in adult, but with pale grey eye. C.s. parvula: as in adult. C.s. abbotti: as in adult. C.s. citrinocristata: as in adult.

Call: Call a harsh screech, less raucous than that of the Sulphur-crested Cockatoo. May also emit sweeter squeaky notes and whistles.

Recent Academic Research: Google Scholar - search results

 

Content Sources:

"Lesser Sulphur-crested Cockatoos," CKC Birds http://www.ckcbirds.co.uk/lessersulphurcrestedcockatoos.htm

Busch Gardens/Discovery Cove

Pet Place http://www.petplace.com/birds/choosing-a-lesser-sulphur-crested-cockatoo/page1.aspx#

BirdLife International http://www.birdlife.org/datazone/species/index.html?action=SpcHTMDetails.asp&sid=1398&m=0

CITES http://www.cites.org/eng/resources/species.html

Internet Bird Collection http://www.hbw.com/ibc/

Parrots: A Guide to Parrots of the World, Juniper and Parr, 1998.

Parrots: Status Survey and Conservation Plan 2000-2004, Snyder, McGowan, Gilardi and Grajal, 2000.

Parrots of the World, Forshaw and Cooper, 1977.

Parrots of the World, Forshaw, 2006.

Parrots in Aviculture, Low, 1992.

Psittacine Aviculture, Schubot, Clubb and Clubb, 1992.