KÄLLANDER, H. Commensal use of Mute Swans Cygnus olor by Common Coot Fulica atra and of Canada Geese Branta canadensis by European Wigeon Anas penelope. Ornis Svecica, Lund, Sweden, v. 23, n. 2, p. 108–110, 2013. DOI: 10.34080/os.v23.22580. Disponível em: https://journals.lub.lu.se/os/article/view/22580. Acesso em: 5 dec. 2022.