BENSCH, Staffan; LINDSTRÖM, Åke. The age of young Willow Warblers Phylloscopus trochilus estimated from different stages of post-juvenile moult. Ornis Svecica, Lund, Sweden, v. 2, n. 1, p. 23–28, 1992. DOI: 10.34080/os.v2.23081. Disponível em: https://journals.lub.lu.se/os/article/view/23081. Acesso em: 13 jun. 2024.