Demoiselle Cranes Conquer Everest
In Demoiselle Cranes: Conquering Everest, narrator Sir David Attenborough explains how birds struggle to cross the Himalayas on their seasonal migration. Cheer on the weak and tired cranes as they face turbulence and storms at such a high altitude. This video is excerpted from BBC's Planet Earth, a breathtaking documentary series that highlights the natural wonders of our planet.
Lesson Express
Q: Why do the demoiselle cranes make such a dangerous migration?
A: They spend the winter in India, and the Himalayas lie in their way.
Q: What conditions led to the cranes’ exhaustion?
A: The cranes experienced a long journey, extremely high altitude, turbulence, storms, and lack of food and water.
Q: What purpose does calling to one another serve?
A: It helps the flock stay together; alone, a crane might perish.