S. Müller, 1843,
Has been treated as conspecific with R. euryura, and close relationship with R. rufiventris has also been suggested, but little evidence to support either; differs from euryura in its white spots on breast and wing-coverts (3); more white on tail tip (2); more extensive white belly (1); shade darker grey plumage (ns); less white in brow (ns); shorter bill (mean of five males of each species 14.78 mm vs 16.56; at least 1). Monotypic.
Extreme S Thailand, Peninsular Malaysia, Sumatra and Borneo.
Food and feeding
Status and conservation
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