email a friend
printable version
DD
Luzon Buttonquail Turnix worcesteri

Justification
This species is listed as Data Deficient because there is insufficient information available on its population, range, trends and threats for an assessment of its threat status.

Taxonomic source(s)
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.

Distribution and population
Turnix worcesteri is endemic to the island of Luzon in the Philippines, where it is known from just six localities. Virtually all records have derived from bird-catchers and are assumed to be intra-island migrants. There is a recent (January 2009) record of an individual caught and photographed at Dalton Pass (Allen 2009). The limited available evidence suggests that it breeds somewhere in northern Luzon in April-June and that at least some birds disperse southwards in the period July-March. Thus its true range (and habitat) remain obscure. It appears to be rare; however, buttonquails are a notoriously cryptic and unobtrusive family of birds, and the species could conceivably occur in reasonable numbers somewhere. If it does inhabit grasslands, it cannot be assumed that increases in this habitat on Luzon have benefited the species, which may prove to have specific ecological requirements not met by the creation of pastures or cropland through forest clearance.

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).

Ecology
It may be confined to grasslands in the highlands of the Cordillera Central, although records are from 150-1,250 m, and the possibility that it frequents forested (non-grassland) habitats cannot be discounted. It has been stated that it inhabits tall grass under pine trees (per Allen 2009), although this requires verification.


Threats
Hunting evidently poses a threat (e.g. at the migratory funnel and bird-catching area of Dalton Pass, Nueva Vizcaya), but the impact of this on its population cannot currently be gauged.

Conservation Actions Underway
None is known. Conservation Actions Proposed
Prioritise fieldwork to locate viable populations of the species and identify suitable areas where it might be effectively protected.

References
Allen, D. 2009. Worcester's Buttonquail Turnix worcesteri rediscovered at Dalton Pass. BirdingASIA 11: 83-84.

Collar, N. J.; Mallari, N. A. D.; Tabaranza, B. R. J. 1999. Threatened birds of the Philippines: the Haribon Foundation/BirdLife International Red Data Book. Bookmark, Makati City.

del Hoyo, J.; Elliott, A.; Sargatal, J. 1996. Handbook of the Birds of the World, vol. 3: Hoatzin to Auks. Lynx Edicions, Barcelona, Spain.

Further web sources of information
Detailed species accounts from the Threatened birds of Asia: the BirdLife International Red Data Book (BirdLife International 2001).

Explore HBW Alive for further information on this species

Search for photos and videos, and hear sounds of this species from the Internet Bird Collection

Text account compilers
Benstead, P., Lowen, J., Symes, A., Taylor, J.

IUCN Red List evaluators
Butchart, S., Symes, A.

Recommended citation
BirdLife International (2014) Species factsheet: Turnix worcesteri. Downloaded from http://www.birdlife.org on 31/07/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 31/07/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Key facts
Current IUCN Red List category Data Deficient
Family Turnicidae (Buttonquails)
Species name author McGregor, 1904
Population size Unknown mature individuals
Population trend Unknown
Distribution size (breeding/resident) 105,000 km2
Country endemic? Yes
Links to further information
- Additional Information on this species