A. E. Brehm, 1852,
Traditionally thought to form a species-group with G. himalayensis, G. indicus (with tenuirostris), G. coprotheres and G. fulvus. Recent genetic data indicate that present species forms a clade with G. fulvus, and that these two are sister to a clade comprising G. indicus, G. tenuirostris and G. coprotheres#R, an arrangement independently supported by study based on wider molecular sample from additional loci#R. Original description contained two spellings of specific name; present spelling (rueppelli) was selected by First Reviser#R. Two subspecies recognized.
Food and feeding
Status and conservation
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