SÖDERHOLM, Svante. Flying Bitterns Botaurus stellaris with unusual behaviour. Ornis Svecica, Lund, Sweden, v. 11, n. 1–2, p. 103–108, 2001. DOI: 10.34080/os.v11.22867. Disponível em: https://journals.lub.lu.se/os/article/view/22867. Acesso em: 19 apr. 2024.