Pycnonotus hualon


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Pycnonotus hualon
Species Authority: Woxvold, Duckworth and Timmins, 2009
Common Name(s):
English Bare-faced Bulbul
Taxonomic Notes: Pycnonotus hualon was described as new to science by Woxvold et al. (2009).

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2012
Date Assessed: 2012-05-01
Assessor(s): BirdLife International
Reviewer(s): Butchart, S. & Symes, A.
Contributor(s): Pilgrim, J.
Facilitator/Compiler(s): Calvert, R.
This species has a large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend is not known, but the population is not believed to be decreasing sufficiently rapidly to approach the thresholds under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.

Geographic Range [top]

Range Description: Pycnonotus hualon is known from Savannakhet province, Laos, although there is strong evidence that the species is also present in Bolikhamxai and Khammouan province (J. Pilgrim in litt. 2009, Woxvold et al. 2009).

Lao People's Democratic Republic
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: The global population size has not been quantified, but based on observations the species appears to be locally common.
Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: This species occupies the middle and upper levels of karst outcrops, where soil is almost absent and vegetation is dominated by small deciduous trees and shrubs. It is thought to feed on fruits and berries (Woxvold et al. 2009).

Systems: Terrestrial

Threats [top]

Major Threat(s): This species may be undergoing a slight decline due to quarrying, hunting and habitat degradation due to livestock grazing and firewood collection (Woxvold et al. 2009).

Conservation Actions [top]

Conservation Actions: Conservation Actions Underway
The species is thought to be present in the Phou Hinpoun and Hin Namno National Protected Areas (Woxvold et al. 2009).

Conservation Actions Proposed
Conduct surveys to establish the range and population size

Citation: BirdLife International 2012. Pycnonotus hualon. The IUCN Red List of Threatened Species. Version 2015.2. <>. Downloaded on 02 September 2015.
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