Recovery Plan for the Norfolk Island Green Parrot Cyanoramphus novaezelandiae cookii
Threats to the taxonThreats to the taxon
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Threats to the taxon
The primary factors responsible for the decline of the Green Parrot have been habitat loss, particularly trees with suitable hollows, and predation by introduced predators. Currently egg/chick predation by introduced predators particularly rats and cats, a shortage of predator-free nest sites, and nest hollow competition are the main factors limiting population recovery. Disease may be a significant cause of mortality in certain circumstances. Other factors which may have contributed to the decline in the past include shooting and trapping for crop protection (until the 1950s) (Hicks and Preece 1991).