“[First Successful Nesting of the Bearded Vulture (Gypaetus Barbatus) in Piedmont since the Beginning of the Reintroduction Project in the Alps]”. Rivista Italiana di Ornitologia 89, no. 2 (April 30, 2020). Accessed July 1, 2025. https://sisn.pagepress.org/rio/article/view/439.