Holmgren, N.M.A. and Engström, H. 2006. Stopover behaviour of spring migrating Wood Warblers Phylloscopus sibilatrix on the Island of Capri, Italy. Ornis Svecica. 16, 1–2 (Apr. 2006), 34–41. DOI:https://doi.org/10.34080/os.v16.22721.