• 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. 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	Data Deficient
2016	Data Deficient
2012	Data Deficient
2008	Data Deficient
2004	Data Deficient
2000	Data Deficient
1996	Vulnerable
1994	Vulnerable
1988	Threatened

Migratory status	not a migrant	Forest dependency	does not normally occur in forest
Land-mass type		Average mass	-

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	196,000 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	unknown	-	-	-
Generation length	3 years	-	-	-

Population justification: This species has only rarely been recorded (with no records since 2009; Allen [2020]). It may therefore be genuinely very rare, or it could be that the region and habitat it occupies remains to be extensively searched. Consequently, even qualitative estimations of its abundance are considered unreliable.

Trend justification: The population trend is of this species is wholly unknown due to there being nothing precisely known of its distribution, habitat requirements or biology. It may however be in decline because of human predation (BirdLife International 2001).

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

Country/Territory	IBA Name
Philippines	Angat watershed
Philippines	Mount Pulag National Park
Philippines	University of the Philippines Land Grants (Pakil and Real)

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Grassland	Subtropical/Tropical Dry	major	resident
Grassland	Subtropical/Tropical High Altitude	suitable	resident
Altitude	0 - 1250 m	Occasional altitudinal limits

Threat (level 1)	Threat (level 2)	Impact and Stresses
Biological resource use	Hunting & trapping terrestrial animals - Intentional use (species is the target)	Timing		Scope		Severity		Impact
		Ongoing		Unknown		Unknown		Unknown
		Stresses Species mortality

Purpose	Scale
Food - human	subsistence, national

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Recommended citation
BirdLife International (2024) Species factsheet: Luzon Buttonquail Turnix worcesteri. Downloaded from https://datazone.birdlife.org/species/factsheet/luzon-buttonquail-turnix-worcesteri on 23/12/2024.
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 23/12/2024.