Migrating birds face many perils as they travel between breeding and wintering grounds each year. Migration is a dangerous part of a bird's life cycle, with many trade-offs; birds receive benefits from wintering and breeding in better quality habitats, at the price of higher predation risks and greater energy expenditure.
Migrating birds face many perils as they travel between breeding and wintering grounds each year. Migration is a dangerous part of a bird's life cycle, with many trade-offs; birds receive benefits from wintering and breeding in better quality habitats, at the price of higher predation risks and greater energy expenditure.
Source: Wikipedia "Bird migration perils" · CC BY-SA 4.0
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