KARLSSON, Thomas. Egg size in Black-headed Gulls Larus ridibundus. Ornis Svecica, Lund, Sweden, v. 15, n. 1, p. 46–47, 2005. DOI: 10.34080/os.v15.22756. Disponível em: https://journals.lub.lu.se/os/article/view/22756. Acesso em: 15 apr. 2024.