Tui (Prosthemadera novaeseelandiae) - BirdLife species factsheet

Tui Prosthemadera novaeseelandiae

Current view: Data table and detailed info

Taxonomy

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.
Turbott, E.G. 1990. Checklist of the Birds of New Zealand. Ornithological Society of New Zealand, Wellington.

IUCN Red List criteria met and history

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2016	Least Concern
2012	Least Concern
2009	Least Concern
2008	Least Concern
2004	Least Concern
2000	Lower Risk/Least Concern
1994	Lower Risk/Least Concern
1988	Lower Risk/Least Concern

Species attributes

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

Distribution

	Estimate	Data quality
Extent of Occurrence breeding/resident (km²)	2,380,000	medium
Severely fragmented?	no	-

Population and trend

	Value	Data quality	Derivation	Year of estimate
Number of mature individuals	2500-9999	poor	inferred	0
Population trend	decreasing		suspected	-
Generation length (years)	5.8	-	-	-

Population justification: The population is estimated to number 278 mature individuals on Rangatira Island. This constitutes a tiny proportion (much less than 5%) of the species's range, and so the total population is likely to number 5,560 mature individuals at the very least, but probably considerably more. It is precautionarily placed in the band 2,500-9,999 mature individuals. This equates to 3,750-14,999 individuals in total, rounded here to 3,500-15,000 individuals.

Trend justification: This population is suspected to be in decline owing to ongoing habitat destruction and the effects of introduced species (Higgins et al. 2001).

Country/territory distribution

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

Important Bird and Biodiversity Areas (IBA)

Country/Territory	IBA Name

Habitats & altitude

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Rural Gardens	suitable	resident
Artificial/Terrestrial	Urban Areas	suitable	resident
Forest	Subantarctic	suitable	resident
Forest	Temperate	major	resident
Altitude		Occasional altitudinal limits

Utilisation

Purpose	Primary form used	Life stage used	Source	Scale	Level	Timing
Pets/display animals, horticulture	-	-		international	non-trivial	recent

Recommended citation
BirdLife International (2023) Species factsheet: Prosthemadera novaeseelandiae. Downloaded from http://datazone.birdlife.org/species/factsheet/tui-prosthemadera-novaeseelandiae on 27/09/2023. Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from http://datazone.birdlife.org on 27/09/2023.