Which species is identified as the closest relative to Saxicola rubetra within the Genus Saxicola?
Answer
Saxicola rubicola
Within the Genus *Saxicola*, different species share a very recent common ancestor, and the text highlights the Stonechat, *Saxicola rubicola*, as a key relative used for comparison against the Whinchat, *Saxicola rubetra*. Understanding this close genetic proximity to *S. rubicola* helps taxonomists predict similarities in morphology, behavior, and evolutionary pathways. The subtle genetic and morphological markers are what distinguish *S. rubetra* from this closest relative, establishing the final step in its precise binomial designation.

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