Question

ᴡʜʏ ᴅᴏ ᴍᴏsᴛ ᴏғ ʙɪʀᴅs ғʟʏ ɪɴ ᴠ sʜᴀᴘᴇ?​

Answer 1

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First, it conserves their energy. Each bird flies slightly above the bird in front of him, resulting in a reduction of wind resistance. The birds take turns being in the front, falling back when they get tired. In this way, the geese can fly for a long time before they must stop for rest.