Location: Outside U.S.
Date: Winter 2013-2014
How does a flying bird manuver to make a left turn?
A lot of a birds ability to turn relies on their tail feathers. They use them the same way as a rudder on a boat.
Bird flight is an amazing, very complex process developed over many generations of adaptation. Perhaps an aeronautical engineer could give a detailed description. This web site is a good basic primer:
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Update: November 2011