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27.03.2010
Covert



http://www.indiana.edu/~bradwood/eagles/wingsfeathers.htm


Covert feathers add thickness to the front of the wing so air
moves faster over the top of the wing.



http://en.wikipedia.org/wiki/Covert_%28feather%29


A covert feather on a bird is one of a set of feathers, called
coverts, which as the name implies, cover other feathers. The coverts help to
smooth airflow over the wings and tail.



http://OzReport.com/1269644699
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