Until very recently considered conspecific with Z. mollissima and Z. salimalii under the name “Plain-backed Thrush”, but differs from latter in characters given under that species (which see). Differs from former on account of its larger bill (effect size on published data 3.62; score 2); greyer forehead to nape, contrasting clearly with warmer upperparts (1); less contrasting face pattern (1); more uniformly patterned wings (1); parapatric occurrence along (below) the forest/alpine ecotone (3); and far richer, slower, more musical song, hence lower bottom frequency (effect size >2; score 2) and lower peak frequency (effect size >2; score 2)#R. Monotypic.
SC China (NC & C Sichuan); non-breeding poorly known, but reported from NW Vietnam (NW Tonkin).
Food and feeding
Status and conservation
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