Choegyab, 29, is one of 17 volunteer wardens who have taken on the responsibility of protecting the vulnerable black-necked cranes in Nyanpo Yuzee, a region on the eastern edge of the Qinghai-Tibet Plateau. Choegyab is a local Tibetan herder, and also a self-taught wildlife photographer. Since 2011, he has been monitoring the cranes that arrive every year on his summer pasture to breed and filming their activities. In the fragile environment high on the plateau, Choegyab and his family are demonstrating how human beings coexist with the wildlife around them.