Justification
This forest-dependent species is listed as Near Threatened because it is assumed to be experiencing a moderately rapid decline owing to the extensive loss of lowland forests from large areas of Borneo. It is not considered more threatened because it occurs in lower montane forest.
Taxonomic source(s)
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.
Distribution and populationBatrachostomus harterti is restricted to the Bornean Mountains Endemic Bird Area. Discounting its erroneous listing for Tanjung Puting National Park, it is known by only eight specimens from four areas in Sarawak,
Malaysia, and one in West Kalimantan,
Indonesia. The range and population have not been thoroughly investigated.
Population justificationThe global population size has not been quantified, but the species is described as possibly not common, although little is known (Cleere 1998).
Trend justificationAlthough very poorly known, this species is probably declining at a moderately rapid rate, in line with forest clearance on Borneo. As it occurs at higher elevations it may have escaped more rapid declines.
EcologyThe few available reliable records indicate that it favours hill and lower montane forest at 300-1,250 m (Orenstein
et al. 2010).
ThreatsThere is steady habitat loss on Mt Dulit. Typically logging and agricultural expansion threaten forest habitats in Borneo.
Conservation actions underwayNone are known.
Conservation actions proposedBefore conservation priorities can be set, basic information on the species's ecology, status and likely threats are required. Protect areas of suitable habitat and safeguard against logging and agricultural encroachment.
References
BirdLife International. 2001. Threatened birds of Asia: the BirdLife International Red Data Book. BirdLife International, Cambridge, U.K.
Orenstein, R.; Wong, A.; Abghani, N.; Bakewell, D.; Eaton, J.; Teck, Y. S.; Li, Y. D. 2010. Sarawak - a neglected birding destination in Malaysia. BirdingASIA 13: 30-41.
Further web sources of information
Detailed species accounts from the Threatened birds of Asia: the BirdLife International Red Data Book (BirdLife International 2001).
View photos and videos, and hear sounds of this species from the Internet Bird Collection
Text account compilers
Benstead, P., Bird, J., Khwaja, N., Taylor, J.
IUCN Red List evaluators
Butchart, S., Symes, A.
Recommended citation
BirdLife International (2013) Species factsheet: Batrachostomus harterti. Downloaded from
http://www.birdlife.org on 19/06/2013.
Recommended citation for factsheets for more than one species: BirdLife International (2013) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 19/06/2013.
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.
Additional resources for this species
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