5 Rivers NRM, BirdLife WA and DBCA have recently confirmed Carnaby Black-Cockatoo breeding for the first time in satellite bushland blocks surrounding Dryandra Woodland. While the importance of Dryandra Woodland as a foraging area for Black-Cockatoos has long been well documented, reports of suspected Carnaby breeding in the area have circulated for several years, based on observations by local landholders and residents.

Recent surveys have confirmed Carnaby’s Black Cockatoo breeding within Dryandra Woodland National Park when a Carnaby’s hen was found incubating eggs in a tree hollow. Encouraged by this finding, the survey area was expanded. A total of seven additional tree hollows actively being used by Carnaby Black-Cockatoos for breeding were identified within or near the Montague block at Dryandra. This discovery confirmed the long-held belief that Carnaby’s do, indeed, breed within the Woodland.

Carnaby Black-Cockatoos rely almost exclusively on large tree hollows found in mature eucalypts, particularly marri, salmon gum and wandoo. However, identifying suitable breeding hollows in wandoo can be especially challenging. Unlike marri—where large, older trees with suitable hollows are often conspicuous—wandoo trees can remain relatively narrow even at great age, making potential breeding sites much harder to detect in the landscape.

Given the level of Carnaby activity already recorded in the Dryandra area, it is likely that additional breeding sites exist throughout the Woodland, particularly in areas with high-quality habitat. Further surveys and exploration are planned for the next breeding season, so stay tuned as we continue to uncover more about Carnaby breeding in southwest Western Australia.

Finding new breeding sites is only the first step. Protecting surrounding habitat, restoring food and water sources, and working closely with landholders are all critical to ensuring these sites remain viable in the long term. With an improved understanding of key breeding resources and coordinated conservation action, Carnaby Black-Cockatoos will have a far better chance of surviving into the future.

5 Rivers NRM are currently delivering the Moordidjabiny Project, focused on protecting Carnaby Black-Cockatoos through targeted on-ground management that addresses key threats while providing essential resources for foraging, watering, nesting and roosting. See our website for more information: Moordidjabiny-Project-Summary_2024_Final.pdf

1 week old Carnaby chick found in hollow at Dryandra

This project is funded by the Australian Government Natural Heritage Trust and delivered by 5 Rivers NRM, a member of the Commonwealth Regional Delivery Partners panel.

We acknowledge the Noongar people as Traditional Custodians of this land and pay our respects to all Elders past and present