|To:||Birds mailing list <>|
|Subject:||Glossy Black Cockatoos on Kangaroo Island|
|From:||Alkirna Tours <>|
|Date:||Wed, 04 Aug 2004 11:11:30 +0930|
The recent references to Glossy Black Cockatoos with a population of 280 would definitely refer to the SA subspecies Calyptorhynchus lathami halmaturinus now only found on Kangaroo Island.
The population fell as low as 180 ten to twenty years ago and has now recovered to an estimated 290 - 300. The recovery has been aided by a very strong community effort to plant more She-oak feeding trees and to preserve nesting habitat and install artificial nest boxes.
A major reason for the recovery in numbers has been the banding of all located nesting trees with sheet metal to keep Brush-tailed Possums out of the nests. The possums are in plague numbers here and have been conclusively shown to be a major predator on the eggs and the nestling young of the cockatoos.
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