Magnificent trip of overwintering black-necked cranes on Qinghai-Tibet Plateau

The black-necked cranes are the only cranes that grow and mate on the plateau. Every year in October, they take off eastward passing the Himalayas and the Yarlung Tsangpo River to the end of the mountains. They finally reach the world's deepest, biggest, and most enigmatic canyon: the Yarlung Tsangpo Grand Canyon.