SMITH, John Alexander. Additional Notes to Notice of the Remains of the Great Auk (Alca impennis, Linn.), found in Caithness; with Notes of its Occurrence, &c., in Scotland, and of its Early History. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 14, p. 436–444, 1880. DOI: 10.9750/PSAS.014.436.444. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/5938. Acesso em: 26 apr. 2024.