Arheimer, Ola, and Sören Svensson. “Breeding Performance of the Fieldfare Turdus Pilaris in the Subalpine Birch Zone in Southern Lapland: A 20 Year Study”. Ornis Svecica 18, no. 1 (January 1, 2008): 17–44. Accessed December 5, 2024. https://journals.lub.lu.se/os/article/view/22679.