The snow bunting (Plectrophenax nivalis ) is a passerine bird in the family Calcariidae. It is an Arctic specialist, with a circumpolar Arctic breeding range throughout the northern hemisphere. There are small isolated populations on a few high...
McKay's bunting (Plectrophenax hyperboreus ) is a passerine bird in the longspur family Calcariidae. It is most closely related to the snow bunting (P. nivalis ). Hybrids between the two species have been observed, leading some authorities to treat...
