Snow geese travel in large groups. They cover 3,000 miles (4,800 km) on their journey.
These geese are migrating. They fly in a V-shape to save energy. The birds in front change the wind flow for the birds in back. This makes it easier for the birds in back to fly. The birds also take turns leading. This helps them fly farther each part of the trip. They can also see each other so no one gets lost.
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Have you ever seen birds flying in a group together? What did you think they were doing?
Have you read other books about birds? What new thing did you learn?
What might happen if birds stopped migrating?
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