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

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.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	D2

Red List history

Year	Category	Criteria
2022	Vulnerable	D2
2016	Vulnerable	D2
2013	Vulnerable	D2
2012	Vulnerable	D2
2008	Vulnerable	D1; D2
2007	Vulnerable
2004	Vulnerable
2000	Vulnerable
1996	Vulnerable
1994	Vulnerable
1988	Threatened

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

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	48 km2	medium
Area of Occupancy (breeding/resident)	48 km2
Number of locations	1	-
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	2500-3400, 3100 mature individuals	medium	estimated	2020
Population trend	stable	poor	estimated	-
Generation length	3.82 years	-	-	-
Number of subpopulations	1	-	-	-
Percentage of mature individuals in largest subpopulation	100%	-	-	-

Population justification:

The population on Little Barrier was estimated to be 3,100 mature individuals in 2013, assumed to equate to a total population of over 4,500 individuals, based on density estimates from distance sampling (Toy et al. 2018). This estimate is thought to remain applicable given that the population trend is stable and has been throughout the last three generations (Robertson et al. 2013, 2017, 2021). There are estimated to be 626 mature individuals across the six translocated populations, based on re-sighting and breeding data: Tiritiri Matangi Island (193), Kapiti Island (107), Zealandia (120), Maungatautari (104), Rotokare (56) and Bushy Park (46) (Parlato et al. 2021). These populations are not counted in the total since their survival relies on ongoing intensive management, meaning that they do not qualify as wild populations sensu IUCN and are not included in the assessment.

Trend justification: Although densities appear to fluctuate on Little Barrier (Toy et al. 2018), overall the population trend is estimated to have remained stable throughout the last three generations (Robertson et al. 2013, 2017, 2021).

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	Temperate	major	resident
Altitude	0 - 750 m	Occasional altitudinal limits

Threat (level 1)	Threat (level 2)	Impact and Stresses
Agriculture & aquaculture	Annual & perennial non-timber crops - Scale Unknown/Unrecorded	Timing		Scope		Severity		Impact
		Past, Unlikely to Return		Majority (50-90%)		Slow, Significant Declines		Past Impact
		Stresses Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Livestock farming & ranching - Scale Unknown/Unrecorded	Timing		Scope		Severity		Impact
		Past, Unlikely to Return		Majority (50-90%)		Slow, Significant Declines		Past Impact
		Stresses Ecosystem degradation, Ecosystem conversion
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Named species	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 rattus	Timing		Scope		Severity		Impact
		Past, Likely to Return		Majority (50-90%)		Slow, Significant Declines		Past Impact
		Stresses Reduced reproductive success

---

Recommended citation
BirdLife International (2024) Species factsheet: Stitchbird Notiomystis cincta. Downloaded from https://datazone.birdlife.org/species/factsheet/stitchbird-notiomystis-cincta on 23/11/2024.
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 23/11/2024.