Boiko, D., Kamp-Persson, H. and MorkÅ­nas, J. (2014) “Breeding Whooper Swans Cygnus cygnus in the Baltic states, 1973–2013: result of a 207 re-colonisation”, Wildfowl, p. 207–216. Available at: https://tidsskrift.dk/Wildfowl/article/view/153626 (Accessed: 16 December 2025).