Berg, Åke, Olle Kvarnbäck, and Åsa Gustafsson. “Breeding Skylarks Alauda Arvensis on Organic Set-asides—effects of Time of Cutting, Vegetation Structure and Landscape Composition”. Ornis Svecica 19, no. 1 (January 1, 2009): 32–40. Accessed April 20, 2024. https://journals.lub.lu.se/os/article/view/22666.