![]() ![]() Juvenile and immature: similar to female except for less pale yellow spots on head, cheeks and wings, dull pale yellow bars on breast and belly, outer tail feathers brightly barred with red or orange red (little or no yellow) and bill dark grey or blackish. With orange-yellow tail narrowly banded with orange-yellow (more orange) on undertail coverts bill pale greyish white. Only the south-western population naso is listed as Vulnerable.Īdult male: glossy black except for bright orange-red band towards tip of tail, bill dark grey or blackish.įemale: glossy black, the head and wing coverts spotted with pale yellow breast and belly barred There are three subspecies of Red-tailed Black Cockatoo in Western Australia (see map). It has declined due to destruction of forests and woodlands, also competition for nest hollows with native and exotic species and the impact of fire. Usually in pairs or small flocks, seldom large flocks (up to 200). It was formerly common, but is now rare to uncommon and patchily distributed over a range which has become markedly reduced. “Vulnerable: under Federal Environmental Protection and “Listed Vulnerable: Schedule 1 – Western Australian Wildlife ![]() ![]() The south-western population naso (referring to its large bill) was named by John Gould in 1837. Artificial Cockatoo Tubes eliminate the majority of competition species by design, allowing Black Cockatoos access to a viable breeding site without intense competition. Despite their size, all these competitors will often use and take over the few remaining natural hollows suitable for Black Cockatoos. Black Cockatoo’s constantly face pressure from competition species such as Gallah’s, Corella’s, 28’s and feral bees. This tolerance of the elements has allowed Artificial Cockatoo Tube design to capitalize on this feature as few other competitor species are able to do the same. ![]() Black cockatoos have evolved to tolerate the elements, the majority of natural hollows large enough to accommodate Black Cockatoo breeding, are upright and have large openings. The Major design principle of an Artificial Cockatoo Tube is the open top entrance. There is however a design criterion that will enhance success, and reduce the use by competitor species. An Artificial Cockatoo Tube can be made from a variety of materials, each having different properties, therefore advantages and disadvantages with each design. Wally’s invention has been the saving of the species thus far, with his Artificial Hollows fledging hundreds of Carnaby’s over the past 35 years.Īrtificial Cockatoo Tubes are essentially a man-made vessel designed to mimic the internal hollow of a Eucalyptus tree. His original design can still be seen throughout the streets and greater shire of Moora with over 100 hung from trees and poles. We always pay homage to the inventor of the Artificial Cockatoo Tube in Wally Kerkhof. The results have been a lifeline to the species, and continue to support the recovery. 2022 continued to build showing a great increase in breeding attempts.Īrtificial Breeding Tubes have been the resulting work of dedicated individuals like Wally Kerkhof, Denis Saunders, Ron Johnstone, Tony Kirby and Rick Dawson, along with the support of several organizations such as Moore Catchment Council, Chittering Landcare and Serpentine Jarrahdale Landcare. 2021 saw some spectacular results with dozens of our Carnaby’s Crusaders Artificial Cockatoo Tubes producing Carnaby’s Fledglings. We were passed the fabrication banner in 2020 and continue to support Chittering Wildlife Carers with the production & Installation of Artificial Cockatoo Tubes, while also producing several designs for dedicated landholders willing to purchase and host on suitable private land holdings around the state. Proud members of Chittering Wildlife Carers since moving to the area in 2014, we were always working towards a way of contributing to the cause.Ī collaboration between sponsors Tronox and Chittering Wildlife Carer Fred Hoogland, saw the basic production of Artificial Hollows as a source of income for the group take shape. Long before Carnaby’s Crusaders were established as a formal enterprise in 2021, the dream was being realized in partnership with small scale individual landholders & a desire to provide much needed Artificial Breeding Hollows for our endangered Carnaby’s Black Cockatoo’s. ![]()
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