What nutritional benefit do berries like crowberries or blueberries provide the migrating Whimbrel?

Answer

A necessary boost of energy-rich carbohydrates

The consumption of berries during stopovers is vital as they supply concentrated, energy-rich carbohydrates needed for sustained long-distance flight.

What nutritional benefit do berries like crowberries or blueberries provide the migrating Whimbrel?
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