Document ID: chunk:federal_register_of_legislation:F2025L00287:reg:3:p138
Version: federal_register_of_legislation:F2025L00287
Segment Type: reg
Provision Reference: reg 3 (pt 138/276)
Character Range: 539251–543234

Predation by rodents                                                                                            Almost certain (91–100%)  Major        Extreme
7. Predation by cats                                                                                               Almost certain (91–100%)  Major        Extreme
8. Predation or damage by chickens                                                                                 Rare (0–10%)              Negligible   Negligible
9. Predation by swamphens                                                                                          Rare (0–10%)              Moderate     Negligible
10. Predation by Argentine ant                                                                                     Likely (51–90%)           Moderate     Medium
11. Competition from/change of habitat because of weed invasion                                                    Possible (26–50%)         Negligible   Negligible
12. Infection by pathogens already present                                                                         Likely (51–90%)           Moderate     Medium
13. Impacts of potential new invasive species or pathogens                                                         Possible (26–50%)         Moderate     Medium
14. Changes to vegetation, increased fire risk and/or direct physiological stress as a result of climatic changes  Likely (51–90%)           Major        High
15. Problems caused by small populations, including lack of genetic diversity                                      Almost certain (91–100%)  Moderate     High

Management actions
Control predators and competitors, particularly feral cats, black rats and rosellas (TSSC 2016). Implement targeted control of cats and rats to reduce predation on the Norfolk Island green parrot. Provide and maintain suitable rat proof nest sites, and optimise the number, placement and spatial configuration of these nest sites, particularly outside the national park (TSSC 2016). Continue weed control and forest rehabilitation work (particularly Nestegis dominant forest) and protect old hollow-bearing trees (TSSC 2016). Control purple swamphens on Phillip Island to facilitate re-establishment of Norfolk Island green parrots. Develop approaches to help the Norfolk Island community manage the species' impacts on orchards as the population continues to expand beyond the park. Explore options for translocation of the species to other islands to create insurance populations.

Recovery target
The recovery target is shown in Table 48.
Table 48 Recovery target for Cyanoramphus cookii
EPBC Act status  Estimated population (2023)  Where known populations occur  2034 target
Endangered       438                          52% in the national park       The population has increased to 1000 individuals, including 150 to 200 breeding pairs, and the breeding range has extended to the south of the island
                 (270–606)                    1% in public reserves
                                              47% in other lands

Relevant literature
Garnett ST & Baker GB (2021) The Action Plan for Australian Birds 2020. CSIRO Publishing, Melbourne.
Garnett ST, Szabo J & Dutson G (2011) The Action Plan for Australian Birds 2010. CSIRO Publishing, Melbourne.
Gautschi D (2024) personal communication by email, 12 January. Australian National University.
Greene TC (2003) Breeding biology of red-crowned parakeets (Cyanoramphus novaezelandiae novaezelandiae) on Little Barrier Island, Hauraki Gulf, New Zealand. Notornis 50, 83–99.
Heinsohn R (2019) Review of the translocation of Norfolk Island Green Parrots from Norfolk Island to Phillip Island. Report to the Director of National Parks, Canberra.
Hermes N, Evans O & Evans B (1986) Norfolk Island birds: a review 1985. Notornis 33, 141–149.
Hicks J & Greenwood D (1990) Rescuing Norfolk Island's Parrot. Birds International 2, 35–47.
Hicks J & Preece M (1991) Green Parrot. 1991