History proves that nature needs care and protection. It happened in the past when the ecology of some natural regions was greatly altered and almost all animal habitats disappeared. The local government of the Bayanbulak area had recognized the area must be protected before it was destroyed. So in 1986, a national reserve was set up to better protect the swans. For years, great efforts have been made, as Liu Wenwen said, thanks to measures taken by the local government.

"We have made long-term plans for the development of Bayanbulak area, especially the Swan Lake. For example, we regulated the vehicle route towards the Swan Lake viewing platform. No yachts are allowed on the lake and no modern facilities are built around it. We try to keep a non-pollution environment for the swans."

Liu Wenwen said local Mongolian residents also help protect the swans whole-heartedly and treat them as their best friends.

"They attach great importance to swans as they think swans represent pure love and unity. Their affection to swans can be traced back long time ago. When they herd sheep, they never go to the centre of Swan Lake area, for fear of disturbing the swans."

Now about 20,000 residents live on the grassland. 47-year-old Dugeerjiafu is one of them. He grew up here. Every day, he herds his sheep and horses on the grassland. Life is not so convenient here, but he has gotten used to that. Accompanied by the swans, he lives a contented life.