• Summary
• Text account
• Data table and detailed info
• Distribution map
• Reference and further resources

Taxonomic source(s)
Boon, W. M.; Kearvell, J. C.; Daugherty, C. H.; Chambers, G. K. 2000. Molecular systematics of New Zealand Cyanoramphus Parakeets: conservation of Orange-fronted and Forbes' Parakeets. Bird Conservation International 10: 211-239.
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. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2022	Near Threatened	A2ce
2016	Near Threatened	C1
2012	Near Threatened	C1
2008	Near Threatened	C1
2004	Near Threatened
2000	Lower Risk/Near Threatened
1994	Not Recognised
1988	Not Recognised

Migratory status	not a migrant	Forest dependency	high
Land-mass type		Average mass	-

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	550,000 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	10000-30000 mature individuals	poor	suspected	2021
Population trend	decreasing	poor	suspected	2009-2023
Rate of change over the past 10 years/3 generations (longer of the two periods)	20-29%	-	-	-
Generation length	3.79 years	-	-	-
Number of subpopulations	10-100	-	-	-

Population justification: The population has decreased in numbers in the past and the species is generally uncommon throughout its range, although it may be common on offshore islands and in some mainland forests (Elliott 2013). The population is estimated as being in the tens of thousands (Elliott 2013) but trends are unclear given large interannual variation in population size (Higgins 1999, T. Greene in litt. 2020). The species fluctuates as a result of beech-masting cycles which cause rapid predator increase (Robertson et al. 2021).

Trend justification: This species is thought to have undergone slow to moderate declines in the past as a result of forest clearance, introduced predators and hybridisation. Although extreme fluctuations in population size make it extremely difficult to determine population trends, expert opinion suggests that for many years the species has been becoming increasingly scarce within mainland forests where there is no integrated predator control (T. Greene in litt. 2022). These declines are likely to be long-term, occurring since the introduction of predators and mass forest cleareance (T. Greene in litt. 2022). Overall the population is suspected to have declined by 10–50% within three generations (Robertson et al. 2021), with a best estimate precautionarily placed at 20-29%.

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
New Zealand	extant	native	yes

Country/Territory	IBA Name

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Lowland	major	resident
Forest	Subtropical/Tropical Moist Montane	major	resident
Altitude	0 - 900 m	Occasional altitudinal limits

Threat (level 1)	Threat (level 2)	Impact and Stresses
Agriculture & aquaculture	Annual & perennial non-timber crops - Small-holder farming	Timing		Scope		Severity		Impact
		Past, Unlikely to Return		Minority (<50%)		Slow, Significant Declines		Past Impact
		Stresses Ecosystem degradation, Ecosystem conversion
Biological resource use	Logging & wood harvesting - Unintentional effects: (large scale) [harvest]	Timing		Scope		Severity		Impact
		Past, Unlikely to Return		Minority (<50%)		Slow, Significant Declines		Past Impact
		Stresses Ecosystem degradation, Ecosystem conversion
Climate change & severe weather	Temperature extremes	Timing		Scope		Severity		Impact
		Future		Whole (>90%)		Rapid Declines		Medium Impact: 6
		Stresses Indirect ecosystem effects
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Felis catus	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Species mortality
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Mustela erminea	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Species mortality
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Rattus exulans	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 - Rattus rattus	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Reduced reproductive success
Invasive and other problematic species, genes & diseases	Problematic native species/diseases	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Hybridisation
Invasive and other problematic species, genes & diseases	Problematic native species/diseases - Cyanoramphus novaezelandiae	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Hybridisation

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Recommended citation
BirdLife International (2024) Species factsheet: Yellow-fronted Parakeet Cyanoramphus auriceps. Downloaded from https://datazone.birdlife.org/species/factsheet/yellow-fronted-parakeet-cyanoramphus-auriceps on 22/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 22/12/2024.