A. O. Hume, 1871,
#R, Koshtak, Yarkand plains, Xinjiang.
Until recently considered conspecific with R. pekinensis, but review#R revealed that it differs in its dark brown vs whitish irides (3); more weakly streaked crown (2); flanks weakly streaked apricot-buff on off-white vs boldly streaked rufous on white (3); greyer cast to crown and tail (ns); larger size (effect size for wing 2.97; score 2); differences in voice (allowed 3#R); drier, more desert-like habitat (1). Monotypic.
NW China from Tarim Basin to Lop Nur (Xinjiang).
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