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Breaking up of swan families in winter disrupts spring migration

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Young Bewick's swans only survive their first spring migration if they stay with their parents long enough. If they lose their parents in winter, they leave later and are unable to keep up with the rest of the population. As a result, there is a greater chance that they will die in their first year of life.

Key takeaways

  • 01Young Bewick's swans only survive their first spring migration if they stay with their parents long enough.
  • 02If they lose their parents in winter, they leave later and are unable to keep up with the rest of the population.
  • 03As a result, there is a greater chance that they will die in their first year of life.
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