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Buru Thrush Zoothera dumasi

Justification
This species is listed as Near Threatened because there are some indications that it has a moderately small, fragmented population within its small range, and it is undergoing a continuing decline owing to trapping. However, the range is not yet severely fragmented or restricted to few locations, and so the species does not currently merit a higher threat category. Further information may indicate it is more threatened.

Taxonomic note
Zoothera dumasi (Sibley and Monroe 1990, 1993) has been split into Z. dumasi and Z. joiceyi following Collar (2004).

Identification
17 cm. A medium-sized thrush. Russet crown, nape, and mantle, and dark brown wings, and face to belly. Belly whitish. Broad white tips to greater and median wing-coverts. Similar spp. None in range. Seram Thrush Z. joiceyi similar, but has dark brown mantle and white tips only to median wing-coverts. Voice Generally silent, but gives an easily overlooked thin tseep contact note and tsree-tsree flight call.

Distribution and population
Zoothera dumasi is endemic to the island of Buru, Indonesia. Little is known about the species, and although it has been described as "not uncommon" (Clement and Hathway 2000), there have been few recent records.

Population justification
Population estimate = 20 individuals/km2 x 1,700 km2 (20% of EOO) = 34,400 individuals (density range from up to lower quartile of two Asian congeners in BirdLife Bird Population Density Spreadsheet). Perhaps best currently placed in population band of 20,000-49,999 individuals.

Trend justification
Although data are very poor, the species may be declining owing to the bird trade.

Ecology
It inhabits dense, lower montane moss-forest, most commonly at 725-1,500 m altitude. It has been suggested that the species is largely restricted to limited areas of level forest within this range (Collar 2004), but it has certainly been seen on steep slopes (F. Lambert in litt. 2005). It feeds alone or in pairs on the ground in deep forest undergrowth (Clement and Hathway 2000). Eggs have been recorded in February, and young in early April (Clement and Hathway 2000).

Threats
Hill forest on Buru is considerably more secure than lowland forest, and indeed remains almost intact. Zoothera species are heavily traded elsewhere in Indonesia, because of their abilities as songsters, so it is likely that this is a threat to the species (Collar 2004, N. Brickle in litt. 2005).

Conservation Actions Underway
Gunung Kelapat Muda Game Reserve presumably contains a population of this species. Conservation Actions Proposed
Conduct further surveys to assess the full extent of occurrence of this species, its specific habitat requirements, and its overall population size. Assess the extent to which bird trade is a threat. Effectively protect suitable forest within its range.

References
Clement, P.; Hathway, R. 2000. Thrushes. Christopher Helm, London.

Collar, N. J. 2004. Species limits in some Indonesian thrushes. Forktail 20: 71-87.

Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.

Sibley, C. G.; Monroe, B. L. 1993. A supplement to 'Distribution and taxonomy of birds of the world'. Yale University Press, New Haven, USA.

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
Bird, J., Khwaja, N., Mahood, S., Pilgrim, J.

Contributors
Brickle, N., Lambert, F.

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

Recommended citation
BirdLife International (2014) Species factsheet: Zoothera dumasi. Downloaded from http://www.birdlife.org on 22/10/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 22/10/2014.

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 Near Threatened
Family Turdidae (Thrushes)
Species name author (Rothschild, 1898)
Population size 20000-49999 mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 8,600 km2
Country endemic? Yes
Links to further information
- Additional Information on this species