Morphology had suggested closest relatives are C. cochinchinensis, C. jerdoni and C. kinabaluensis, but genetic data indicate paraphyly with C. cyanopogon and its subspecies C. c. septentrionalis#R; confirmation of latter arrangement needed. Monotypic.
W Philippines: Calamian Group (Calauit, Busuanga and Culion) and Palawan (including its satellites Dumaran and Balabac).
Food and feeding
Status and conservation
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