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Dark-throated Oriole Oriolus xanthonotus

Justification
This species is restricted to forests within a region undergoing rapid and widespread deforestation. Although it remains widespread and common, it is likely to be declining moderately rapidly throughout its range, and is therefore considered Near Threatened.

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 population
Oriolus xanthonotus occurs in the Sundaic lowlands, from south Tenasserim, Myanmar, peninsular Thailand, Sabah, Sarawak and Peninsular Malaysia, Singapore (formerly), Kalimantan, Sumatra (including Mentawai and Bangka islands) and Java, Indonesia, Brunei and Calamian Islands and Palawan, south-west Philippines (BirdLife International 2001). It is fairly common and widespread in suitable forest habitats.

Population justification
The population size of this species has not been quantified, but it is described as fairly common and widespread.

Trend justification
Population declines are likely to have occurred in line with continuing habitat loss throughout the species's range, largely resulting from logging and clearance for agriculture.

Ecology
This species is mainly found in primary lowland evergreen forest to 1,220 m. It also occurs in tall secondary forest and peatswamp forest.

Threats
Rates of forest loss in the Sundaic lowlands have been extremely rapid, owing partly to the escalation of illegal logging and land conversion, with deliberate targeting of all remaining stands of valuable timber including those inside protected areas. Forest fires have also had a damaging effect (particularly in 1997-1998). The magnitude of these threats may be allayed by this species's tolerance of secondary and sloping hill forest.

Conservation Actions Underway
No targeted conservation actions are known for this species, although some of its habitat is protected.

Conservation Actions Proposed
Monitor populations throughout the species's range to identify population trends and rates of habitat loss. Conduct further ecological studies to determine whether populations can persist in secondary habitats in the absence of adjacent primary forest. Protect significant areas of suitable forest, in both strictly protected areas and community-led multiple use areas.

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

del Hoyo, J.; Elliott, A.; Christie, D. 2008. Handbook of the Birds of the World, vol. 13: Penduline-tits to Shrikes. 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., Gilroy, J., Taylor, J.

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

Recommended citation
BirdLife International (2014) Species factsheet: Oriolus xanthonotus. Downloaded from http://www.birdlife.org on 23/09/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 23/09/2014.

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 Oriolidae (Orioles and figbirds)
Species name author Horsfield, 1821
Population size Unknown mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 1,160,000 km2
Country endemic? No
Links to further information
- Additional Information on this species