Xavier's Greenbul Phyllastrephus xavieri

A relatively colorful greenbul with an olive-green back, yellowish underparts, and a rufous tail. Found in the understory and at middle levels of rainforest, usually in small flocks. Readily joins mixed-species flocks, often alongside Icterine Greenbuls. Very similar in appearance to that species and best distinguished by voice, but slightly larger-billed, with less red on the tail and uppertail. The call is a slow series of nasal barking notes, quite different from the faster and higher-pitched series of notes given by Icterine Greenbul.