[2] Ebird describes it as "A medium-sized bird of forest and edge in the mountains on Palawan.

Call is a simple nasal “chewp!”[3] The sulphur-bellied bulbul was originally described in the genus Criniger.

It is assessed as least-concern species under the International Union for Conservation of Nature with the population decreasing.

Palawan's forests are under threat due to illegal logging, deforestation, land conversion and mining.

The whole of Palawan was designated as a Biosphere Reserve; however, protection and enforcement of laws has been difficult and these threats still continue.