Previously thought to be conspecific with M. perspicillata. Has been suggested that two or three species are involved#R. Form described from Aceh (N Sumatra) as “M. vanderbilti” now known to be synonym of race barussana of present species. Proposed race liberalis (NW Sumatra) merged with barussana, and minor (E Java and Bali) with nominate. Proposed race bangkae (claimed to be from Bangka I, off SE Sumatra) inseparable from nominate, and in any case of very doubtful provenance#R. Five subspecies recognized.
Food and feeding
Status and conservation
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