Migratory birds seen at Dongzhai Port Nature Reserve in Haikou

Migratory birds are seen at Dongzhai Port Nature Reserve in Haikou, south China's Hainan Province, Nov. 8, 2023. The place is known for its mangrove forest, which provides a habitat for birds and other wild animals. (Xinhua/Zhang Liyun)

A migratory bird is seen at Dongzhai Port Nature Reserve in Haikou, south China's Hainan Province, Nov. 8, 2023. The place is known for its mangrove forest, which provides a habitat for birds and other wild animals. (Xinhua/Yang Guanyu)

A migratory bird is seen at Dongzhai Port Nature Reserve in Haikou, south China's Hainan Province, Nov. 8, 2023. The place is known for its mangrove forest, which provides a habitat for birds and other wild animals. (Xinhua/Yang Guanyu)

Migratory birds are seen at Dongzhai Port Nature Reserve in Haikou, south China's Hainan Province, Nov. 8, 2023. The place is known for its mangrove forest, which provides a habitat for birds and other wild animals. (Xinhua/Yang Guanyu)

Migratory birds are seen at Dongzhai Port Nature Reserve in Haikou, south China's Hainan Province, Nov. 8, 2023. The place is known for its mangrove forest, which provides a habitat for birds and other wild animals. (Xinhua/Yang Guanyu)

Migratory birds are seen at Dongzhai Port Nature Reserve in Haikou, south China's Hainan Province, Nov. 8, 2023. The place is known for its mangrove forest, which provides a habitat for birds and other wild animals. (Xinhua/Yang Guanyu)

A migratory bird is seen at Dongzhai Port Nature Reserve in Haikou, south China's Hainan Province, Nov. 8, 2023. The place is known for its mangrove forest, which provides a habitat for birds and other wild animals. (Xinhua/Yang Guanyu)

Migratory birds are seen at Dongzhai Port Nature Reserve in Haikou, south China's Hainan Province, Nov. 8, 2023. The place is known for its mangrove forest, which provides a habitat for birds and other wild animals. (Xinhua/Zhang Liyun)

A migratory bird is seen at Dongzhai Port Nature Reserve in Haikou, south China's Hainan Province, Nov. 8, 2023. The place is known for its mangrove forest, which provides a habitat for birds and other wild animals. (Xinhua/Zhang Liyun)

Migratory birds are seen at Dongzhai Port Nature Reserve in Haikou, south China's Hainan Province, Nov. 8, 2023. The place is known for its mangrove forest, which provides a habitat for birds and other wild animals. (Xinhua/Zhang Liyun)