Question

why do birds fly v shape in the sky​

Answer 1

Answer:

When birds fly together in a V-shape, they reduce the amount of effort they have to make. When a bird flaps its wings as it flies, little bits of air come off the end of its wings, trailing behind it like an invisible footprint in the sky.

Answer 2

Answer:

Anyone watching the autumn sky knows that migrating birds fly in a V formation, but scientists have long debated why. A new study of ibises finds that these big-winged birds carefully position their wingtips and sync their flapping, presumably to catch the preceding bird's updraft—and save energy during flight.

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