Grattini, Nunzio, Stefano Bellintani, and Paolo Gialdi. “[First Nesting of Phalacrocorax Pygmeus in Mantua Province (Lombardy, N Italy)]”. Rivista Italiana di Ornitologia 88, no. 1 (December 5, 2018): 59-60. Accessed August 22, 2019. https://sisn.pagepress.org/index.php/rio/article/view/375.