Why do birds fly in a V formation?

Birds of a feather may flock together, but why they fly together in V formations has never been known for certain. Now, with the help of 14 northern bald ibises fitted with lightweight sensors on a 1000-kilometre migration from Austria to Tuscany, researchers are suggesting that the explanation is one that was long suspected but never proved: the formation helps the birds conserve energy.

 

Read more: http://www.smh.com.au/environment/animals/scientists-discover-why-birds-fly-in-a-v-20140116-30xt4.html#ixzz2qbmzI6PY

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