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Article
Dmitrijs Boiko, Auteur ; Martin Wikelski, Auteur
Article
Dmitrijs Boiko, Auteur ; Hakon Kampe-Persson, Auteur ; Julius Morkunas, AuteurDans Wildfowl (64 2014)A review of the literature on Whooper Swans Cygnus cygnus breeding in the Baltic states indicates that the swans are recolonising areas where they once bred historically. In recent years, the number of breeding birds has increased from two pairs[...]
Article
Dmitrijs Boiko, Auteur ; Hakon Kampe-Persson, AuteurDans Wildfowl (60 2010)This study describes the population status, development, distribution and habitat choice of breeding Whooper Swans Cygnus cygnus breeding in Latvia. The breeding population increased from one breeding pair in 1973 to c. 260 pairs in 2009. The fi[...]
Article
Dmitrijs Boiko, Auteur ; Hakon Kampe-Persson, AuteurThis study is the first to demonstrate moult migration in the Whooper Swan Cygnus cygnus. Of cygnets hatched in Latvia and known to be alive about 99% left the country to moult somewhere else in their 2nd-6th calendar year. One-sixth of these we[...]
Article
Dmitrijs Boiko, Auteur ; Hakon Kampe-Persson, AuteurDans Wildfowl (61 2011)Of 396 Whooper Swan Cygnus cygnus cygnets marked with neck collars in Latvia during the 2004-2008 breeding seasons, 70% were re-sighted at least once in winters 2004/05-2009/10. Overall, 91% of the 2,985 winter re-sightings were of swans seen in[...]
