Which species is considered the Yellowhammer's closest relative within the genus *Emberiza*?
Answer
Pine Bunting (*Emberiza leucocephalos*)
The closest relative to the Yellowhammer within the genus *Emberiza* is identified as the Pine Bunting, scientifically named *Emberiza leucocephalos*. Their genetic bond is so tight that they are frequently classified together as a *superspecies*. This close relationship is evidenced not only genetically but also behaviorally, as demonstrated by their tendency to interbreed where their geographic ranges meet, an event termed secondary contact. Observers also note significant similarities between their songs, further highlighting their recent divergence from a common ancestor.

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