Esse, Elio, and Danila Mastronardi. “Ascertained Nesting of Great Spotted Cuckoo, Clamator Glandarius, in Campania (S Italy)”. Rivista Italiana di Ornitologia 80, no. 1 (December 31, 2010). Accessed November 25, 2024. https://sisn.pagepress.org/rio/article/view/88.