Borecha, Degitu, Tomas Willebrand, and Olafur K. Nielsen. “Lek Site Defines Annual Spatial Use of Male Black Grouse (Tetrao Tetrix)”. Ornis Fennica 94, no. 3 (September 30, 2017): 150–160. Accessed November 21, 2024. https://ornisfennica.journal.fi/article/view/133920.