Birds fly in Guanshan Lake Park in Guiyang, capital of southwest China's Guizhou Province, Nov. 8, 2019. The traditional solar term of Lidong, the beginning of winter, fell on Nov. 8 this year. The Guanshan Lake Park, with vivid decoration of flying birds, presents a beautiful early winter scenery.[Photo/Xinhua]

A bird rests on a shoal in Guanshan Lake in Guanshan Lake Park in Guiyang, capital of southwest China's Guizhou Province, Nov. 8, 2019. The traditional solar term of Lidong, the beginning of winter, fell on Nov. 8 this year. The Guanshan Lake Park, with vivid decoration of flying birds, presents a beautiful early winter scenery. [Photo/Xinhua]

A bird flies above Guanshan Lake in Guanshan Lake Park in Guiyang, capital of southwest China's Guizhou Province, Nov. 8, 2019. The traditional solar term of Lidong, the beginning of winter, fell on Nov. 8 this year. The Guanshan Lake Park, with vivid decoration of flying birds, presents a beautiful early winter scenery.[Photo/Xinhua]

A bird flies above Guanshan Lake in Guanshan Lake Park in Guiyang, capital of southwest China's Guizhou Province, Nov. 8, 2019. The traditional solar term of Lidong, the beginning of winter, fell on Nov. 8 this year. The Guanshan Lake Park, with vivid decoration of flying birds, presents a beautiful early winter scenery.[Photo/Xinhua]

Birds rest on trees in Guanshan Lake Park in Guiyang, capital of southwest China's Guizhou Province, Nov. 8, 2019. The traditional solar term of Lidong, the beginning of winter, fell on Nov. 8 this year. The Guanshan Lake Park, with vivid decoration of flying birds, presents a beautiful early winter scenery.[Photo/Xinhua]

Birds rest on trees in Guanshan Lake Park in Guiyang, capital of southwest China's Guizhou Province, Nov. 8, 2019. The traditional solar term of Lidong, the beginning of winter, fell on Nov. 8 this year. The Guanshan Lake Park, with vivid decoration of flying birds, presents a beautiful early winter scenery. [Photo/Xinhua]