Whooper Swans ( $120 )

9) Whooper swans (Cygnus cygnus) migrate many hundreds of miles each year from their summer habitat to wintering sites in northern Europe and eastern Asia. Lake Kussharo in Hokkaido is a particularly popular over wintering site, as the natural hot thermal springs along the eastern shore prevent the water completely freezing over even in the middle of bitterly cold winters. Whooper swans pair for life, and their grey-coloured offspring stay with them as a family throughout the winter.