Do you know why one side of a V of geese is longer than the other?
Because there's more birds on that side.
@TheDoctorsTARDIS, I though it was bc of the direction of the wind. Less drag so they use less energy to fly. But what do I know? I am no expert on the V
But they take turns
@Naberrie, unless one is injured. They leave them in the back.
@Naberrie, yup, when tired they reduce their drag by going toward the back... Aren't we all knowledgeable these days :)