Numbers and distribution of Mute Swans Cygnus olor Whooper Swans C. cygnus and Bewick's Swans C. bewickii in the Black Sea area of the Ukraine, USSR
3rd International swan symposium ; 1989 ; Oxford
1991-01-01
3 pages
400p
Conference paper
English
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British Library Conference Proceedings | 1991
|British Library Conference Proceedings | 1991
|British Library Conference Proceedings | 1991
|British Library Conference Proceedings | 1991
|Factors affecting breeding success in Bewick's Swans Cygnus bewickii
British Library Conference Proceedings | 1991
|