[Explanation] Tens of thousands of swallow nests are densely arranged on the deep trench cliff of Aorun Sumosumu, Aohan Banner, Chifeng City, Inner Mongolia Autonomous Region. The scene is very spectacular. On June 16th, the reporter came here to visit and saw a row of fist-sized swallow nests clearly visible on the gravel and black soil cross section of more than 10 meters high. There are also many swallows flying, and tens of thousands of nests are neatly arranged on several connected broken walls with a radius of several kilometers. It is understood that these swallows are Yashayan. The forest public security organs of Aohan Banner have also protected the habitat of the local Yashayan, established permanent habitat publicity signs, and prevented man-made destruction of Yashayan.

　　[Explanation] Yasha Yan was included in the World Conservation Union (IUCN) 2012 Red List of Endangered Species ver3.1. They got their name because they like to build nests on sandy cliffs, and they are also called "cliff architects". As the local ecology has improved in recent years and the number of rice cultivation has increased, Yasha Yan has a rich food. Similarly, Yashayan catches crop pests and plays a positive role in increasing agricultural production and harvest.

　　[Same period] Aohan Banner Ao Run Sumo Sumu Sumida Baoyali

　　Tens of thousands (Yashayan) build nests in our Sumu. This is the return of green ecology and affirmation of our ecological construction. We cherish this (Yashayan) and settle down here.

　　[Commentary] The reporter learned that local people have a long history of love and admiration for swallows. As early as 4,000 years ago, there were many beautiful and lively swallow patterns in the painted pottery. And in later murals, red mountain culture pottery can also see swallow patterns.

　　[Same period] Tian Yanguo, director of Inner Mongolia Prehistoric Culture Museum

　　We can also say that this kind of bird, and some experts think that this is a kind of swallow, it is a kind of swallow. It reflects that these tribes and chiefs were 4,000 years ago. They were also (regarded as swallows) gods. They portrayed it abstractly on this accompanying device.

　　[Explanation] Locally, people think that swallows are auspicious birds, and today's life is also full of many cultural elements related to swallows.

　　[Same period] Wu Han, Director of Aohanqi Non-Legacy Protection Center

　　Swallows are auspicious birds in the hearts of our Mongolians. Therefore, there are stories about swallows among many folk entertainers, including storytelling artists and these famous proverbs. In addition, the auspicious pattern of swallows appeared in paper cutting and embroidery. Therefore, the swallow is a symbol of auspicious peace in the hearts of our Aohan people.

　　(Reporter Wu Yana, Correspondent Li Fu, Sun Hongbo and Chifeng report)

Editor in charge: [Ji Xiang]