Records of Carnaby’s Black Cockatoo nesting attempts

Story via BirdLife Australia’s Cocky Notes Summer 2015/16 edition.cocky2

A review of data collected from long-term nest surveys is cause for concern. This shows that the population declines noted in the Great Cocky Counts are not just confined to the Greater Perth-Peel Region.

Nest surveys at Koobabbie Station in Coorow and two properties in Calingiri have been conducted now for over 10 years.

The graphs below show that nesting attempts at these properties has declined dramatically even though the number of trees surveyed has increased.

These declines are consistent with the observations of long-term property owners in these areas, who tell us of large declines in Carnaby’s sightings and nesting, despite the availability of nesting hollows on their properties.

These results show the importance of conducting Carnaby’s Black-Cockatoo nest surveys over many years. BirdLife Australia has funding to continue the nesting surveys in 2016.

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