OTTVALL, Richard; GREEN, Martin; LINDSTRÖM, Åke; SVENSSON, Sören; ESSEEN, Per-Anders; MARKLUND, Liselott. Distribution and habitat choice of the Ortolan Bunting Emberiza hortulana in Sweden. Ornis Svecica, Lund, Sweden, v. 18, n. 1, p. 3–16, 2008. DOI: 10.34080/os.v18.19596. Disponível em: https://journals.lub.lu.se/os/article/view/19596. Acesso em: 19 apr. 2024.