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Golden-winged Laughingthrush Garrulax ngoclinhensis

Justification
This species qualifies as Vulnerable because it is known only from a single area, and is therefore likely to have a very small range, making it very susceptible to future habitat loss.

Taxonomic source(s)
Eames, J. C.; Le Trong Trai; Nguyen Cu. 1999. A new species of Laughingthrush (Passeriformes: Garrulacinae) from the Western Highlands of Vietnam. Bulletin of the British Ornithologists' Club 119: 4-15.

Taxonomic note
Described as new to science by Eames et al. (1999a).

Identification
26 cm. Shy laughingthrush with golden wings. Chestnut crown, hind crown and nape. Black lores and grey ear-coverts. Grey mantle, back and rump with slight olive tinge. Olive-brown tail with outer webs tinged golden-brown. Black primaries and secondaries, but with golden basal halves. Olive greater coverts broadly tipped chestnut. Golden outer web to alula. Similar spp. G. yersini has black head, except ear-coverts, and orange breast extending up to mantle and down to belly. Voice Call a cat-like mewing Rr raow Rr raow.

Distribution and population
Garrulax ngoclinhensis was only described in 1999. It is only known from Mt Ngoc Linh and Mt Ngoc Boc (Eames 2001) on the Kon Tum plateau of central Vietnam. At Mt Ngoc Linh it has been recorded from the Ngoc Linh (Kon Tum) Nature Reserve, and Ngoc Linh (Quang Nam) proposed nature reserve. It has also been recorded from Kon Plong Forest Complex (Eames et al. 2001). The population is unknown, but it may occur in the neighbouring Attapu and Se Kong provinces of Laos.

Population justification
Uncommon within a very small range, so placed in the band 1,000-2,499 mature individuals. This equates to 1,500-3,749 individuals in total, rounded here to 1,500-4,000 individuals. This is a provisional estimate that requires confirmation.

Trend justification
Although the status of this species is very poorly known, it is suspected that a slow decline may be occurring, owing to increasing habitat loss and degradation within its likely range.

Ecology
All observations have been between 2,000 and 2,200 m in the herb and shrub layers of primary, upper montane, evergreen forest. It is presumed to be resident. The holotype specimen had enlarged testes suggesting breeding activity in May.

Threats
In Ngoc Linh (Kon Tum) Nature Reserve, 13% of evergreen forest was lost between 1976 and 1995. Forest at Ngoc Linh (Quang Nam) proposed nature reserve is threatened by clearance for agriculture, a process that is accelerating in response to natural population growth and settlement of migrants in the area. Trapping pressure is likely to accompany the conversion of habitat in this species's elevation range (S. Mahood in litt. 2012).


Conservation Actions Underway
It is resident in the Ngoc Linh (Kon Tum) Nature Reserve and Ngoc Linh (Quang Nam) proposed nature reserve.Conservation Actions Proposed
Conduct further surveys in Laos and Vietnam to determine its distribution, approximate population size and habitat requirements. Initiate and expand management, monitoring, training and education in Ngoc Linh (Kon Tum) Nature Reserve and gazette the adjoining Ngoc Lihn (Quang Nam) proposed nature reserve.

References
BirdLife International. 2001. Threatened birds of Asia: the BirdLife International Red Data Book. BirdLife International, Cambridge, U.K.

Eames, J. 2001. On the trail of Vietnam's endemic babblers. Oriental Bird Club Bulletin 33: 20-27.

Eames, J. C.; Kuznetsov, A. N.; Monastyrskii, A. L.; Nguyen Tien Hiep; Nguyen Quang Truong; Ha Quy Quynh. 2001. A preliminary biodiversity assessment of the Kon Plong Forest Complex, Kon Tum Province, Vietnam. WWF Indochina Programme, Hanoi.

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., Gilroy, J., Taylor, J.

Contributors
Eames, J.C., Mahood, S., Pilgrim, J.

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

Recommended citation
BirdLife International (2014) Species factsheet: Garrulax ngoclinhensis. Downloaded from http://www.birdlife.org on 25/12/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 25/12/2014.

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 Vulnerable
Family Timaliidae (Babblers and parrotbills)
Species name author Eames, Le Trong Trai & Nguyen Cu, 1999
Population size 1000-2499 mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 150 km2
Country endemic? Yes
Links to further information
- Additional Information on this species