Olsson, O., I. N. Nillsson, S. G. Nilsson, B. Pettersson, A. Stagen, and U. Wiktander. “Habitat Preferences of the Lesser Spotted Woodpecker Dendrocopus Minor”. Ornis Fennica 69, no. 3 (September 30, 1992): 119–125. Accessed May 17, 2024. https://ornisfennica.journal.fi/article/view/133348.