High Quality Content by WIKIPEDIA articles! The Zamboanga Bulbul (Ixos rufigularis) is a songbird species in the bulbul family (Pycnonotidae). It is one of the species of Ixos that might warrant inclusion in the genus Hypsipetes – as long as this is kept separate from Ixos – as it may be a close relative of the Philippine Bulbul (H. philippinensis), which in turn is closely related to the type species of Hypsipetes, the Black Bulbul (H. leucocephalus).

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