SALVO, G. [The decline of one of the most threatened European birds of prey: 41 years of observations on the Lanner, <em>Falco biarmicus</em> in Sicily]. Rivista Italiana di Ornitologia, [S. l.], v. 89, n. 2, 2020. DOI: 10.4081/rio.2019.454. Disponível em: https://sisn.pagepress.org/rio/article/view/454. Acesso em: 16 apr. 2024.