Kampe-Persson, Hakon, Dmitrijs Boiko, and Julius Morkūnas. “Erratum: Distribution and Numbers of Moulting Non-Breeding Whooper Swans Cygnus Cygnus in the Baltic States and South Sweden”. Ornis Svecica 23, no. 1 (January 1, 2013): 61–62. Accessed May 4, 2024. https://journals.lub.lu.se/os/article/view/23114.