On Zhengyang Gate, there is a peaceful nest in Beijing Swift

Every year from April to mid -July, the world's only wild migratory bird Beijing Swift, which is named after "Beijing", will choose to inquire on the building of Zhengyangmen City. Such a landscape has lasted for more than 600 years.

At this time, many citizens and photography enthusiasts come to the Zhengyang Gate on the central axis in Beijing to see the rainy stuff chasing the flying swallows and hovering in the air.

Beijing Swift is not only a cultural symbol of Beijing cities, but also one of the "living culture" on the central axis of Beijing. The first digital image launched by the central axis is exactly Beijing Swift.

Along with the pace of the protection of the central axis of Beijing, Zhengyangmen City Tower is about to start repair. Prior to this, the researchers conducted special discussions on how to protect the swallows during the repair. "The maintenance shelf of Zhengyangmen Tower should have been built, but considering that the rainfall is to be hatched in the city building, the shelf will affect the swallow and exit, so wait for the Swift to fly after all the south of the rain." Recently, the central axis in Beijing, the central axis in Beijing, Guan Zhanxiu, director of the Heritage Protection Center, said, "The protection of ancient construction is important, and ecological protection is equally important!"

Over the years, Zhengyangmen has not only set up a video surveillance system for the Yansan Nest acupoint hidden on the top floor of the city building, but also carried out research research to better protect these "aborigines" in Beijing. Through monitoring, there were about 28 Swift Nests on the Tower of Zhengyangmen City. Based on a family of four or five mouths in a nest, there are more than a hundred swallows inhabited in Zhengyangmen.

In 2018, Zhengyangmen launched the "Ancient Construction Protection and Urban Ecology Research -Taking the Beijing Swift in Zhengyang Gate as an example" series of topics, extracting the Beijing Yansan Nest and Duan Micro Bio DNA, and quantitative analysis of Zhengyang tiles The impact of Mugu Building. The results of the study show that the stool and nest of the rainwood and nests have not constituted a substantial impact on wooden ancient construction and painting. According to Yuan Xuejun, an associate researcher at the Beijing Central Heritage Protection Center, compared with the impact of sun and rain on paintings, the impact of Swift is small.

Swallow is a bird of nursing. After the nesting of the nest in the first year, I will return to this "home" every year. Today, the top floor of Zhengyangmen City has become the "home" of Swift, and they live comfortably here for a few months every year.

In the past few days, people discovered that the Yanyan Nest acupoints on the tower of Zhengyangmen City have gradually been empty. It seems that these stuttering rain swallows have bid farewell to Beijing, and once again opened the long -distance migration to the south.

(Reporter Li Ruizhen Zhang Jinghua)

【Edit: Bian Liqun】

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