Berndtson, Sanna, Wenfei Liao, and Petri Nummi. “Time Budget of Common Cranes (Grus Grus) Varies Between Habitats: Implications for Management”. Baltic Forestry 29, no. 2 (November 7, 2023): id691. Accessed November 15, 2024. https://balticforestryojs.lammc.lt/ojs/index.php/BF/article/view/691.