In pics: Shankou Mangrove Nature Reserve in S China's Guangxi

Birds are seen in Shankou Mangrove Nature Reserve in Hepu County of Beihai City, south China's Guangxi Zhuang Autonomous Region, Oct. 23, 2022. The Shankou Mangrove Nature Reserve, a wetland reserve protecting the ecosystem of the mangrove forest, has been designated as a wetland of international importance in China. (Xinhua/Zhang Ailin)

A bird is seen in Shankou Mangrove Nature Reserve in Hepu County of Beihai City, south China's Guangxi Zhuang Autonomous Region, Oct. 23, 2022. The Shankou Mangrove Nature Reserve, a wetland reserve protecting the ecosystem of the mangrove forest, has been designated as a wetland of international importance in China. (Xinhua/Zhang Ailin)

This aerial photo taken on Aug. 22, 2022 shows birds in Shankou Mangrove Nature Reserve in Hepu County of Beihai City, south China's Guangxi Zhuang Autonomous Region. The Shankou Mangrove Nature Reserve, a wetland reserve protecting the ecosystem of the mangrove forest, has been designated as a wetland of international importance in China. (Xinhua/Zhang Ailin)

This aerial photo taken on Aug. 25, 2022 shows birds in Shankou Mangrove Nature Reserve in Hepu County of Beihai City, south China's Guangxi Zhuang Autonomous Region. The Shankou Mangrove Nature Reserve, a wetland reserve protecting the ecosystem of the mangrove forest, has been designated as a wetland of international importance in China. (Xinhua/Zhang Ailin)

This aerial photo taken on Oct. 22, 2022 shows the scenery of Shankou Mangrove Nature Reserve in Hepu County of Beihai City, south China's Guangxi Zhuang Autonomous Region. The Shankou Mangrove Nature Reserve, a wetland reserve protecting the ecosystem of the mangrove forest, has been designated as a wetland of international importance in China. (Xinhua/Zhang Ailin)

Birds are seen in Shankou Mangrove Nature Reserve in Hepu County of Beihai City, south China's Guangxi Zhuang Autonomous Region, Oct. 23, 2022. The Shankou Mangrove Nature Reserve, a wetland reserve protecting the ecosystem of the mangrove forest, has been designated as a wetland of international importance in China. (Xinhua/Zhang Ailin)

A bird is seen flying in Shankou Mangrove Nature Reserve in Hepu County of Beihai City, south China's Guangxi Zhuang Autonomous Region, Oct. 23, 2022. The Shankou Mangrove Nature Reserve, a wetland reserve protecting the ecosystem of the mangrove forest, has been designated as a wetland of international importance in China. (Xinhua/Zhang Ailin)

A bird flies over the Shankou Mangrove Nature Reserve in Hepu County of Beihai City, south China's Guangxi Zhuang Autonomous Region, Oct. 23, 2022. The Shankou Mangrove Nature Reserve, a wetland reserve protecting the ecosystem of the mangrove forest, has been designated as a wetland of international importance in China. (Xinhua/Zhang Ailin)