Nature conservation

Threatened species

Gang-gang Cockatoo population in the Hornsby and Ku-ring-gai Local Government Areas - profile

Indicative distribution

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The areas shown in pink and/purple are the sub-regions where the species or community is known or predicted to occur. They may not occur thoughout the sub-region but may be restricted to certain areas. ( click here to see geographic restrictions). The information presented in this map is only indicative and may contain errors and omissions.
Scientific name: Callocephalon fimbriatum - endangered population
Conservation status in NSW: Endangered Population
Commonwealth status: Not listed
Gazetted date: 23 Feb 2001
Profile last updated: 01 Dec 2017


A relatively small, dark grey cockatoo, 33 - 36 cm in total length. Feathers are distinctively squarish on the ends, with a lighter coloured margin producing a scalloped appearance. Males have a bright red head and crest. Females have a grey head and crest and the scalloped margins of females breast feathers are reddish - pink.


This endangered population is found in the Ku-ring-gai and Hornsby local government areas. The population is believed to be largely confined to an area bounded by Thornleigh and Wahroonga in the north, Epping and North Epping in the south, Beecroft and Cheltenham in the west and Turramurra/South Turramurra to the east. It is known to inhabit areas of Lane Cove National Park, Pennant Hills Park and other forested gullies in the area.

Habitat and ecology

  • Occurs within a variety of forest and woodland types. Usually frequents forested areas with old growth attributes required for nesting and roosting purposes.
  • Also utilises less heavily timbered woodlands and urban fringe areas to forage, but appears to favour well timbered country through which it habitually flies as it moves about.
  • Individuals of this population are likely to move outside the 'defined' population boundary in the general area and should still be considered of this population.
  • Significant as it is the last known breeding population in the Sydney Metropolitan area.
  • Has a small population size, estimated to be between 18 - 40 pairs.

Regional distribution and habitat

Click on a region below to view detailed distribution, habitat and vegetation information.


Recovery strategies

Activities to assist this species

Information sources

IBRA Bioregion IBRA Subregion Known or predicted Geographic restrictions region
Sydney BasinCumberland Known Hornsby and Ku-ring-gai LGAs
Sydney BasinPittwater Known Hornsby and Ku-ring-gai LGAs
Sydney BasinYengo Known Hornsby and Ku-ring-gai LGAs