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Numbers and distribution of Bewick's Swan Cygnus columbianus bewickii wintering in Britain and Ireland: Results of international censuses, January 1995, 2000 and 2005
ArticleAbstract: The total size of the Northwest European population of Bewick's Swan Cygnus columbianus bewickii isPalabras claves:Bewick's Swan, Britain, census, Ireland, Wintering populationAutores:Cranswick P.A., Mcelwaine G., Olivia Crowe, Rees E.C., Worden J.Fuentes:scopusPopulation size and breeding success of the Icelandic Whooper Swan Cygnus cygnus: Results of the 2015 international census
ArticleAbstract: The seventh international census of Whooper Swans in Britain, Ireland, Iceland and the Isle of Man tPalabras claves:census, Distribution, Habitat use, Population size, Productivity, Whooper SwanAutores:Calbrade N., Einarsson Ó., Hall C., Mcelwaine G., Olivia Crowe, Rees E.C.Fuentes:scopus