Rätti, O., M. Hovi, J. Kilpimaa, P. Siikamäki, and R. V. Alatalo. “A Very Long Distance Between Two Nests of a Polyterritorial Pied Flycatcher Male”. Ornis Fennica 71, no. 1 (March 31, 1994): 26–27. Accessed November 22, 2024. https://ornisfennica.journal.fi/article/view/133389.