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A pair of black swans and their babies swim in the Yanque Lake in Nanjing, east China's Jiangsu Province, April 26, 2022. (Photo: China News Service/Yang Bo)
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Four black swan babies swim in the Yanque Lake in Nanjing, east China's Jiangsu Province, April 26, 2022. (Photo: China News Service/Yang Bo)
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A wild duck flies over the Yanque Lake in Nanjing, east China's Jiangsu Province, April 26, 2022. (Photo: China News Service/Yang Bo)
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Pigeons rest on tree branches near the Yanque Lake in Nanjing, east China's Jiangsu Province, April 26, 2022. (Photo: China News Service/Yang Bo)