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. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.

IUCN Red list criteria met and history

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
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	-

Distribution

	Estimate	Data quality
Extent of Occurrence breeding/resident (km2)	196,000	medium
Number of locations		-
Severely Fragmented		-

Population and trend

	Value	Data quality	Derivation	Year of estimate
No. of mature individuals	unknown	not applicable	not applicable	0
Population trend	Unknown		not applicable	-
Decline (3 years/1 generation past)		-	-	-
Decline (5 years/1 generation past)		-	-	-
Decline (10 years/1 generation past)		-	-	-
Decline (10 years/3 generation future)		-	-	-
Decline (10 years/3 generation past and future)		-	-	-
Number of subpopulations		-	-	-
Percentage in largest subpopulation		-	-	-
Generation length (yrs)	3.5	-	-	-

Population justification: The population size of this species has not been quantified, although it has been described as rare.

Trend justification: The population trend is difficult to determine because of uncertainty over the extent of threats to the species (del Hoyo et al. 1996).

Country/territory distribution

Country/Territory	Occurrence status	Presence	Resident	Breeding	Non-breeding	Passage
Philippines	N	Extant		Yes

Important Bird and Biodiversity Areas (IBA)

Country/Territory	IBA Name
Philippines	Mount Pulag National Park
Philippines	Manila Bay
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

Recommended citation
BirdLife International (2022) Species factsheet: Turnix worcesteri. Downloaded from http://www.birdlife.org on 05/07/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 05/07/2022.