ANDERSSON, Reino. Colour variation of Water Pipit Anthus spinoletta in winter plumage. Ornis Svecica, Lund, Sweden, v. 34, p. 25–32, 2024. DOI: 10.34080/os.v34.25148. Disponível em: https://journals.lub.lu.se/os/article/view/25148. Acesso em: 30 jun. 2024.