Flight Paths review: Why understanding migration may save bird species

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Technology has revealed the truth about the migration of birds like snow geese.

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Flight Paths
Rebecca Heisman (Harper Collins)

QUESTIONS about how and why so many birds make extraordinarily arduous annual migrations – and where they are going – have puzzled us for years. Perhaps they are flying to the moon, speculated 17th-century English educator Charles Morton; others had wondered if, when birds vanished, they might be hunkering down for the winter at the bottom of ponds.

More than three centuries later, scientists are still working to fully unravel the secrets of …

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