“A deeper forest bulbul, the Yellow-bellied Bulbul (Alophoixus phaeocephalus diardi), often alone; here seen feeding and singing. The subspecies A. p. diardi has a clear/noticeable yellow tip to the tail (below). Although described as having no crest, Davison (1999) describes is as ‘absence of a crest is diagnostic‘, this is not that precise. They have the ability to raise crest feathers, and often do so.
“There is limited information or documentation of the song, although known to bird watchers.
“An edited and amplified audio recording of the song (above) and the sonogram-waveform (below) are given. It is a brief burst of an uplifting musical stream of 10-12 notes; sharper and less bubbly than the common Yellow-vented Bulbuls.
“Frank Lambert has a similar recording of the song, from the same forest reserve. See: HERE.”
Dato’ Dr Amar-Singh HSS
Ipoh, Perak, Malaysia
12th September 2017
Location: Kubah National Park, Sarawak, Borneo, Malaysia
Habitat: Trail through primary forest
