Ottvall, Richard, Martin Green, Åke Lindström, Sören Svensson, Per-Anders Esseen, and Liselott Marklund. “Distribution and Habitat Choice of the Ortolan Bunting Emberiza Hortulana in Sweden”. Ornis Svecica 18, no. 1 (January 1, 2008): 3–16. Accessed April 20, 2024. https://journals.lub.lu.se/os/article/view/19596.