The Palawan bulbul or grey-throated bulbul (Alophoixus frater) is a species of songbird in the family Pycnonotidae. It is endemic to Palawan Island in the Philippines. Its natural habitats are tropical moist lowland forests and tropical moist montane forests.
Ebird describes it as "A medium-sized bird of lowland and foothill forest and edge on Palawan and neighboring islands. Yellow below with an olive-green back, brown wings and tail, a gray cheek, and a white throat. Note the fairly stout bill and slightly flattened bushy crest. Somewhat similar to Palawan Babbler, but has a yellow belly, an obvious crest, and dark eyes. Voice consists of three descending high-pitched notes, or else a rattling trill followed by dry staccato notes.[1]
Until 2010, it was considered a subspecies of the grey-cheeked bulbul.[2] The alternate name 'grey-throated bulbul' is also used by the western greenbul.
Diet is unknown. Typically observed alone or in pairs. [3]
The species inhabits tropical moist lowland primary forest and secondary forest up to 1,150 meters above sea level.
It is assesed as least-concern under the IUCN. The whole of Palawan was designated as a Biosphere Reserve; however, protection and enforcement of laws has been difficult and these threats still continue. It occurs in the protected area of Puerto Princesa Subterranean River National Park.[4]