Mezzavilla, Francesco, Gianfranco Martignago, Saverio Lombardo, Luca Boscain, and Giancarlo Silveri. “ Years 2004-2010”. Rivista Italiana di Ornitologia 81, no. 2 (December 15, 2012). Accessed April 26, 2024. https://sisn.pagepress.org/rio/article/view/71.