The Bar‐tailed Lark Ammomanes cinctura is a polytypic bird species with a wide distribution. One of its three subspecies, A. c. arenicolor , has previously been found to show deep mitochondrial divergence between its geographically most distant populations, from Morocco and Saudi Arabia, respectively. We applied an integrative approach using genome‐wide single nucleotide polymorphisms (SNPs), mitochondrial DNA (mtDNA), morphol...