Sunday, December 11, 2011

Trip to Evros Delta, December 2011 (Part 2)

Tundra Swans Cygnus columbianus are the least common of the swans found in Greece. However, in Evros Delta they usually outnumber Whooper Swans, and several hundreds of birds can be seen in winter. This year they have already arrived in good numbers, and their characteristic calls can be heard from early December. 
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