“Defensive behaviour by Jackdaws (Corvus monedula) in response to cooperative hunting of Lanner Falcons (Falco biarmicus)”, Ornis Fenn, vol. 79, no. 2, pp. 82–86, Jul. 2002, Accessed: Nov. 05, 2025. [Online]. Available: https://ornisfennica.journal.fi/article/view/133574