Rytkönen, S., P. Kuokkanen, M. Hukkanen, and K. Huhtala. “Prey Selection by Sparrowhawks Accipiter Nisus and Characteristics of Vulnerable Prey”. Ornis Fennica 75, no. 2 (July 1, 1998): 77–87. Accessed November 2, 2024. https://ornisfennica.journal.fi/article/view/133482.