ANDERSSON, Stina; BENGTSSON, Daniel; HELLSTRÖM, Magnus; WALDENSTRÖM, Jonas. Age and sex determination of Mallards Anas platyrhynchos in autumn. Ornis Svecica, Lund, Sweden, v. 26, n. 2, p. 61–81, 2016. DOI: 10.34080/os.v26.22530. Disponível em: https://journals.lub.lu.se/os/article/view/22530. Acesso em: 19 jun. 2024.