Secret of why many birds fly in V-formation revealed
16 January 2014 Last updated at 06:59 GMT
Researchers have finally found out just why many birds fly in a V-formation.
A team of scientists fitted tiny little computers to a flock of birds as they migrated south for the winter - and its hoped the results can teach us a thing or two about our own flying habits.
Lead researcher Dr Steven Portugal explained: "They're seemingly very aware of where the other birds are in the flock and they put themselves in the best possible position."
Ayshah has the story.