Posters: Top 4 ways to protect birds
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![](https://cdnpdcontent.aikan.pdnews.cn/20230401/e16a0a0f96fe43beabccffe4b738cc3a.jpg)
Birds keep ecosystems running smoothly.
![](https://cdnpdcontent.aikan.pdnews.cn/20230401/96c244f214a84879abd1d07ac93a129b.jpg)
They bring natural joy and beauty to everyday life.
![](https://cdnpdcontent.aikan.pdnews.cn/20230401/01da7d87fb064e8fb4dcff1f0c8c5fa9.jpg)
Birds send signals about the health of an environment.
![](https://cdnpdcontent.aikan.pdnews.cn/20230401/429958ce3d29497fb16667e51473eef1.jpg)
There are countless reasons to protect birds and to at least help them survive. (Produced by Sun Tianren, Xu Yanan and Yang Jiaxin)