Luzon Buttonquail (Turnix worcesteri) - BirdLife species factsheet

Luzon Buttonquail Turnix worcesteri

Current view: Data table and detailed info

Taxonomy

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.

IUCN Red List criteria met and history

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

Species attributes

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

Range

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

Population

	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 distribution

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

Important Bird and Biodiversity Areas (IBA)

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

Habitats & altitude

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

Threats & impact

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

Stresses
Species mortality

Utilisation

Purpose	Primary form used	Life stage used	Source	Scale	Level	Timing
Food - human	-	-			non-trivial	recent

Recommended citation
BirdLife International (2023) Species factsheet: Turnix worcesteri. Downloaded from http://datazone.birdlife.org/species/factsheet/luzon-buttonquail-turnix-worcesteri on 29/11/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from http://datazone.birdlife.org on 29/11/2023.