Järvinen, A. “Population Dynamics in the Pied Flycatcher Ficedula Hypoleuca at Subarctic Kilpsjärvi, Finnish Lapland”. Ornis Fennica 57, no. 1 (March 31, 1980): 17–25. Accessed November 23, 2024. https://ornisfennica.journal.fi/article/view/133027.