George Sangster, J. Martin Collinson, Guy M. Kirwan, Alan G. Knox, Barry J. McMahon, David Parkin, Manuel Schweizer and Jacob Höglund / January 2022 – vol. 115, issue 1, pp.1–60, pp 28–38 Abstract The Red Grouse Lagopus lagopus scotica is a well-known but declining bird endemic to Britain and Ireland. Its taxonomic status was downgraded from species to subspecies in the mid-twentieth century but without any clear rationale. Here, we review the molecular evidence that has accumulated since the mid 1980s and address three issues: (i) the evolutionary distinctivene... This article is only available to registered users.To read more, please log in or purchase a subscription.