SMITH, John Alexander. Notice of the Remains of the Great Auk, or Gare-fowl (Alca Impennis, Linn.), found in Caithness; with Notes of its Occurrence in Scotland and of its Early History. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 13, p. 76–105, 1879. DOI: 10.9750/PSAS.013.76.105. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/5872. Acesso em: 1 may. 2024.