Âm thanh chia sẻ

In the frozen wilderness of the Arctic, where icy winds sweep across towering cliffs and endless tundra, a remarkable bird begins one of the most extraordinary journeys in the natural world. The barnacle goose. With its black neck, bright white face, and soft silver wings, this elegant bird may ap…

In the frozen wilderness of the Arctic, where icy winds sweep across towering cliffs and endless tundra, a remarkable bird begins one of the most extraordinary journeys in the natural world. The barnacle goose. With its black neck, bright white face, and soft silver wings, this elegant bird may appear calm and peaceful. But its life begins with one of the most dangerous challenges any animal will ever face. High above the rocky ground, barnacle geese build their nests on steep cliffs. At first