Slip Sliding Away: Ducks Have Trouble with Icey Pond

Unknown Thursday, January 27, 2011

Although migration may seem to make sense for an animal that can fly, travelling south can have some drawbacks. Migratory birds are often exposed to large unfamiliar areas, and when spring does return, they must repeat the northward journey to raise a family.

But remaining in areas where there is cold, freezing weather has its drawbacks too.
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