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Red-crowned Parakeet Cyanoramphus novaezelandiae
BirdLife is reviewing the status of this species for the 2017 Red List.
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Taxonomy

Taxonomic note

Cyanoramphus novaezelandiae (del Hoyo and Collar 2014) was previously split as C. novaezelandiae, C. cookii (following Christidis and Boles 1994 and Turbott 1990), and C. saisseti (following Boon et al. 2001), and before then C. saisseti was lumped with C. novaezelandiae, with C. cookii treated as a separate species, following Sibley and Monroe (1990, 1993).

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2016 Near Threatened B1ab(ii,iii,v)
2014 Near Threatened B1ab(ii,iii,v)
Species attributes

Migratory status not a migrant Forest dependency Medium
Land mass type Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 19,900 medium
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 16500-35300 medium estimated 2011
Population trend Decreasing poor suspected -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations 2-100 - - -
Largest subpopulations 1-89 - - -
Generation length (yrs) 4.6 - - -

Population justification: Based on population estimates gathered by BirdLife International for the nominate form (Higgins 1999), cookii (Garnett et al. 2011) and saisseti (V. Chartendrault and N. Barré in litt. 2007), the global population is thought to number c.16,500-35,300 mature individuals, which is assumed to equate to c.24,700-53,000 individuals in total.


Trend justification: This species is suspected to be in decline overall, although the nominate form, which is the most populous, is thought to be undergoing a minimal decline (G. Harper in litt. 2005, 2012; Harper 2009), thus the overall rate of decrease is probably slow.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Australia N Extinct Yes
New Caledonia (to France) N Extant Yes
New Zealand N Extant Yes
Norfolk Island (to Australia) N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
New Zealand Adams Island
New Zealand Antipodes Islands
New Zealand Disappointment Island
New Zealand Macauley & Haszard Islands
New Zealand Main Auckland Island
New Zealand Manawatawhi Three Kings Islands
New Zealand Mangere
New Zealand Marotere Chickens Islands
New Zealand Mercury Islands
New Zealand Meyer & Herald Islands
New Zealand Mokohinau Islands
New Zealand North Coast Rakiura
New Zealand Northern Titi Muttonbird Islands
New Zealand Paterson Inlet The Neck
New Zealand Poor Knights Islands
New Zealand Rangatira South East Island
New Zealand Rangiauria Pitt Island
New Zealand Repanga Cuvier island
New Zealand Ruamaahua Aldermen Islands
New Zealand Ruapuke
New Zealand Solander Islands
New Zealand Southern Titi Muttonbird Islands
New Zealand Taranga Hen Island
New Zealand Te Hauturu-o-Toi Little Barrier Island
New Zealand Tuku
New Zealand Whenua Hou Codfish Island

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Lowland major resident
Forest Temperate major resident
Grassland Subantarctic major resident
Shrubland Temperate major resident
Altitude   Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Biological resource use Hunting & trapping terrestrial animals Timing Scope Severity Impact
Past, Unlikely to Return Minority (<50%) Unknown Past Impact
Stresses
Species mortality
Biological resource use Hunting & trapping terrestrial animals Timing Scope Severity Impact
Past, Unlikely to Return Minority (<50%) Unknown Past Impact
Stresses
Species mortality
Biological resource use Logging & wood harvesting Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases Timing Scope Severity Impact
Ongoing Minority (<50%) Unknown Unknown
Stresses
Competition
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases Timing Scope Severity Impact
Ongoing Minority (<50%) Unknown Unknown
Stresses
Competition
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Reduced reproductive success
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Reduced reproductive success
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases Timing Scope Severity Impact
Ongoing Minority (<50%) Unknown Unknown
Stresses
Competition
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases Timing Scope Severity Impact
Ongoing Minority (<50%) Unknown Unknown
Stresses
Competition
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Reduced reproductive success
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Reduced reproductive success
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases Timing Scope Severity Impact
Ongoing Minority (<50%) Unknown Unknown
Stresses
Competition
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases Timing Scope Severity Impact
Ongoing Minority (<50%) Unknown Unknown
Stresses
Competition
Invasive and other problematic species, genes & diseases Viral/prion-induced diseases Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Species mortality

Utilisation
Purpose Primary form used Life stage used Source Scale Level Timing
Food - human - - - Non-trivial Recent
Food - human - - - Non-trivial Recent
Pets/display animals, horticulture - - - Non-trivial Recent
Pets/display animals, horticulture - - - Non-trivial Recent

Recommended citation
BirdLife International (2017) Species factsheet: Cyanoramphus novaezelandiae. Downloaded from http://www.birdlife.org on 18/10/2017. Recommended citation for factsheets for more than one species: BirdLife International (2017) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 18/10/2017.