Justification of Red List Category
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.
The population size of this species has not been quantified, but it is described as fairly common and widespread.
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.
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.
This species is mainly found in primary lowland evergreen forest to 1,220 m. It also occurs in tall secondary forest and peatswamp forest.
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.
Text account compilers
Taylor, J., Benstead, P., Gilroy, J.
BirdLife International (2021) Species factsheet: Oriolus xanthonotus. Downloaded from http://www.birdlife.org on 22/01/2021. Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 22/01/2021.