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

Taxonomic note

Zosterornis striatus (del Hoyo and Collar 2016) was previously listed as Stachyris striata.

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.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2022	Least Concern
2016	Near Threatened	A2c+3c+4c;B1ab(ii,iii,v)
2012	Near Threatened	A2c+3c+4c;B1ab(ii,iii,v)
2008	Near Threatened	A2c; A3c; A4c; B1a+b(iii)
2004	Near Threatened
2000	Lower Risk/Near Threatened
1996	Vulnerable
1994	Vulnerable
1988	Near Threatened

Migratory status	not a migrant	Forest dependency	medium
Land-mass type	shelf island	Average mass	14 g

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	40,700 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	decreasing	poor	suspected	-
Generation length	2.7 years	-	-	-

Population justification: The global population size has not been quantified, but the species is described as locally common (del Hoyo et al. 2007, Allen 2020).

Trend justification: The population trend of this species is uncertain but it is suspected to be declining slowly in response to ongoing forest loss and degradation. Remote sensing data (Global Forest Watch 2021, using Hansen et al. [2013] data and methods disclosed therein) indicate that this is currently occurring at a rate of 2.5-3.0% over three generations. The impact of this on the species' population is unknown as it is known to be tolerant of some habitat degradation but is likely to be declining locally where there is total forest clearance. Much of the species' range lies outside protected areas, and habitat loss and degradation is suspected to continue.

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

Country/Territory	IBA Name
Philippines	Angat watershed
Philippines	Aurora Memorial National Park
Philippines	Central Sierra Madre mountains
Philippines	Mariveles mountains
Philippines	North Eastern Cagayan Protected Landscape and Seascape
Philippines	Northern Sierra Madre Natural Park
Philippines	Peñablanca Protected Landscape and Seascape

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Rural Gardens	marginal	resident
Artificial/Terrestrial	Subtropical/Tropical Heavily Degraded Former Forest	suitable	resident
Forest	Subtropical/Tropical Moist Lowland	major	resident
Forest	Subtropical/Tropical Moist Montane	suitable	resident
Altitude	0 - 500 m	Occasional altitudinal limits	(max) 1000 m

Threat (level 1)	Threat (level 2)	Impact and Stresses
Agriculture & aquaculture	Annual & perennial non-timber crops - Agro-industry farming	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Negligible declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Annual & perennial non-timber crops - Small-holder farming	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Negligible declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion
Biological resource use	Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest]	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Ecosystem degradation
Energy production & mining	Mining & quarrying	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Negligible declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion

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Recommended citation
BirdLife International (2024) Species factsheet: Luzon Striped Babbler Zosterornis striatus. Downloaded from https://datazone.birdlife.org/species/factsheet/luzon-striped-babbler-zosterornis-striatus on 22/11/2024.
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 22/11/2024.