Olive-winged Bulbul Pycnonotus plumosus


Taxonomic note
Pycnonotus plumosus and P. cinereifrons (del Hoyo and Collar 2016) were previously lumped as P. plumosus following Sibley & Monroe (1990, 1993).

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.

IUCN Red List criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2016 Least Concern
Species attributes

Migratory status not a migrant Forest dependency low
Land-mass type Average mass -

Estimate Data quality
Extent of Occurrence (breeding/resident) 4,570,000 km2
Severely fragmented? no -
Estimate Data quality Derivation Year of estimate
Population size unknown - - -
Population trend stable - suspected -
Generation length 2.7 years - - -

Population justification: The global population size has not been quantified, but the species is described as generally abundant throughout much of its range (del Hoyo et al. 2005).

Trend justification: The population is suspected to be stable in the absence of evidence for any declines or substantial threats.

Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Brunei extant native yes
Indonesia extant native yes
Malaysia extant native yes
Myanmar extant native yes
Philippines extant native yes
Singapore extant native yes
Thailand extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Thailand Chaloem Pra Kiet (Pa Phru to Daeng)
Malaysia Bau Limestone
Malaysia Belum-Temenggor
Malaysia Crocker Range
Malaysia Gunung Pueh
Malaysia Kledang Range
Malaysia Klias peninsula
Malaysia Krau Wildlife Reserve
Malaysia Lanjak Entimau Wildlife Sanctuary
Malaysia Mount Kinabalu
Malaysia Mulu - Buda Protected Area
Malaysia Panti forest
Malaysia Pondok Tanjung Forest Reserve
Malaysia Similajau National Park
Malaysia South-east Pahang peat swamp forest
Malaysia Tabin Wildlife Reserve
Malaysia Taman Negara National Park
Malaysia Tanjung Datu-Samunsam Protected Area
Thailand Thaleban
Thailand Khao Nor Chuchi
Malaysia Ulu Muda
Malaysia Lambir Hills National Park
Malaysia Bako-Buntal Bay
Malaysia Bintang Range
Malaysia Endau-Rompin
Malaysia Selangor Heritage Park
Malaysia Kabili-Sepilok
Malaysia Nakawan Range
Malaysia Tanjung Tuan
Malaysia Sadong-Saribas coast
Malaysia Niah National Park
Malaysia Central Titiwangsa Range

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Plantations suitable resident
Artificial/Terrestrial Subtropical/Tropical Heavily Degraded Former Forest suitable resident
Forest Subtropical/Tropical Mangrove Vegetation Above High Tide Level suitable resident
Forest Subtropical/Tropical Moist Lowland suitable resident
Forest Subtropical/Tropical Swamp suitable resident
Grassland Subtropical/Tropical Dry suitable resident
Shrubland Subtropical/Tropical Dry suitable resident
Shrubland Subtropical/Tropical Moist suitable resident
Altitude 0 - 500 m Occasional altitudinal limits (max) 800 m

Recommended citation
BirdLife International (2024) Species factsheet: Pycnonotus plumosus. Downloaded from on 03/03/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from on 03/03/2024.