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Red-tailed Black Cockatoo  (Calyptorhynchus banksii)

Also Known As: Red-tailed Cockatoo, Black Cockatoo, Banksian Cockatoo, Banksian Red-tailed Cockatoo, Bank's Black Cockatoo, Great-billed Cockatoo
 
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Red-tailed Black Cockatoo male in flight

Credit: © Ian Montgomery | http://birdway.com.au


 
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Did You Know?
One prolific captive Red-tailed Black Cockatoo pair raised 30 young in 20 years!

Status in the Wild
World Population:
In excess of 100,000; C.b. graptogyne only 1000.

Range:
C.b. banksii: NE Australia, including offshore islands, from Gulf of Carpentaria and C Cape York Peninsula, N Queensland, south to SE Queensland and rarely to NE New South Wales.
C.b. macrorhynchus: N Australia from Kimberly division of W Australia east to Gulf of Carpentaria, N Queensland.
C.b. samueli: Coastal and subcoastal mid W Australia; along rivers of central ranges in southern Northern Territory and northern S Australia; Lake Eyre and Bulloo River from SW Queensland to far NE South Australia; along upper to middle reaches of Darling River and its tributaries in W New South Wales.
C.b. graptogyne: SW Victoria and SE South Australia.
C.b. naso: SW Australia north to Darling Range and east to Stirling Ranges.


Habitat:
Found in areas with eucalypt trees, usually along river systems.

Threat Summary:
C.b. graptogyne affected by loss of Eucalytus camaldulensis for nesting, E. baxteri for food, both of which have been cleared for cultivation of crops.

IUCN Rating:
C.b. graptogyne endangered, C.b. naso near threatened; as a whole, least concern.

Wild Diet:
Feeds on seeds, nuts, fruits of Eucalypts; also sometimes larvae.

CITES Rating:
Appendix II

Ecology:
Are nomadic, with movement in the north seasonal. Travels inland with wet season. Southern birds move where food is abundant; large flocks gather where they find a lot of food. Create a large amount of leaf, twig and branch litter beneath trees they have fed at. Found in family groups of three within larger flocks of up to 2000 birds.

Clutch and Egg Size:
1 to 2 elliptical eggs, 51.0 x 36.5mm. (2 x 1.4 in).

Breeding Season:
Breeding has been recorded in almost every month; N and C birds during winter months and S and SE birds during autumn.

Project Status (WPT):
WPT provided funding for a project in South Australia to help save these birds.
See: http://www.parrots.org/index.php/ourwork/pp_redtailedblackcockatoo/

Links to Other Project(s):
http://www.birdsaustralia.com.au/rtbced/index.html

More Info Sites:
http://en.wikipedia.org/wiki/Red-tailed_Black_Cockatoo

http://redtail.com.au/

http://www.publish.csiro.au/?act=view_file&file_id=MU9950141.pdf