Dendrocitta sinensis var. formosae
Sometimes treated as conspecific with D. occipitalis and D. cinerascens. Races fall into two groups, W “himalayana group” with generally broad black forehead, darker throat, slightly larger white wing patch, and long tail with extensive grey on basal half of central rectrices, and E “formosae group”, marginally smaller, with slightly narrower forehead, browner throat, smaller wing patch and notably shorter, all-black tail (except in nominate, which has usually less extensive grey on central rectrices); difference in degree of whiteness of rump (less in W, more in E) not strong or constant, but groups nonetheless rather clear and more research needed, especially at boundary between them (e.g. name intermedia proposed for intermediates between assimilis and sinica in W Tonkin). Taiwan birds seem to have at least some vocalizations which differ from those of W populations; hardly any recordings available from mainland China, however, and impossible to determine whether vocal differences are a feature of Taiwan form formosae or of the wider E group. Isolated race sarkari often included in himalayana. Name himalayensis is a junior synonym of himalayana. Eight subspecies recognized.
Food and feeding
Status and conservation
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