- Pycnonotus hualon
A newly described species with first sightings in 1995 and officially described in 2009.
- Bare face and side of the head
- Extensive pale blue periorbital and loral skin and orange-pink skin on the rear side of head
- Loose, hair-like filoplumes along mid-crown
- Olive undertail-coverts
- Fawn-grey breast and belly
- White throat
Currently only know from Laos. Recorded at Pha Lom and Khammouan province limestone.
May also occur in other similar habitat in Laos or Vietnam. A restricted-range species.
Birds seen at Khammouan differ slightly in appearance.
Recorded feeding on berries.
A conspicuous species, mostly seen foraging and moving at all times of day. Usually seen singly or in pairs.
No information yet about breeding.
- Woxvold J., Duckworth J.W. & Timmins R.J. 2009. An unusual new bulbul (Passeriformes:Pycnonotidae) from the limestone karst of Lao PDR. In: Forktail 25 (2009): 1-12
- De Win S. 2009. Laosâ€™ Khammouane Bulbul, a new bird species from Laos. 
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