What key factor enables the Whimbrel to be successful as a long-distance migrant?

Answer

The flexibility in its diet, exploiting food resources across continents.

The adaptability in the Whimbrel's feeding habits, switching between marine invertebrates and terrestrial fare, is crucial for its success in exploiting diverse food resources across its long migratory routes.

What key factor enables the Whimbrel to be successful as a long-distance migrant?
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