The Seattle Times

Markus Unsöld / The Associated Press

Wednesday, January 15, 2014

In sync: Birds in V formation time wing flaps to save energy

In this photo made available by the journal Nature, northern bald ibises fly in formation next to a microlight aircraft. A new study says they choreograph their wing-flapping to get a boost from an updraft of air by flying behind the first bird and off to the side, thus forming a V.