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Population size and breeding success of Icelandic Whooper Swans Cygnus cygnus :results of the 2010 international census

by Hall, Collette, Glanville, Jaqueline R., Bolland, Helen, Einarsson, Olafur, McElwaine, Graham, Holt, Chas A., Spray, Christopher J., Rees, Eileen C.
Published 2012