Volum 6 (2011) Pages: 1-364 Spring migration in the western Mediterranean and NW Africa: the results of 16 years of the Piccole Isole project Gargallo, G., Barriocanal, C., Castany, J., Clarabuch, O., Escandell, R., López-Iborra, G., Rguibi-Idrissi, H., Robson, D., Suárez, M.