Closely related to R. caerulescens and R. madagascariensis. Until recently considered conspecific with R. indicus, which differs in its broad brown vs no or vestigial eyestripe (2); whiter preocular superciliary with markedly darker brown crown (ns); more extensive white on throat (ns); underparts paler grey with brown tinge, especially on breast (2); bold black bars on undertail-coverts (2); markedly different voice, song being a “cranking, rhythmic series of identical strident, metallic yet musical, upslurred SKRINK, SKRINK” vs “a single braying, squealing, pig-like SKREEEr that descends near end”#R (3). Proposed races arjanicus (from S Iran) and deserticola and tsaidamensis (both from N Qinghai, in WC China) are all regarded as synonyms of korejewi. Three subspecies recognized.
Food and feeding
Status and conservation
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