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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

Jenny Worden, Auteur ; Peter A. Cranswick, Auteur ; Olivia Crowe, Auteur ; Graham Mcelwaine, Auteur ; Eileen C. Rees, Auteur

Dans Wildfowl (56 2006)

The total size of the Northwest European population of Bewick's Swan Cygnus columbianus bewickii is monitored at 5-year intervals by a coordinated midwinter census throughout the swans' wintering range. This paper presents the results of three c[...]

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Article

Population size and breeding success of the Icelandic Whooper Swan Cygnus cygnus: results of the January 2005 international census

Jenny Worden, Auteur ; Olivia Crowe, Auteur ; Olafur Einarsson, Auteur ; Arnthor Gardarsson, Auteur ; Graham Mcelwaine, Auteur ; Eileen C. Rees, Auteur

Dans Wildfowl (59 2009)

The fifth international census of Whooper Swans in Britain, Ireland and Iceland was undertaken in January 2005 to determine the size and winter distribution of the Icelandic-breeding Whooper Swan population. A total of 26,366 Whooper Swans was c[...]

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