Holmgren, Noél M A, and Henri Engström. “Stopover Behaviour of Spring Migrating Wood Warblers Phylloscopus Sibilatrix on the Island of Capri, Italy”. Ornis Svecica 16, no. 1–2 (April 1, 2006): 34–41. Accessed June 17, 2024. https://journals.lub.lu.se/os/article/view/22721.