A pair of black swans and their baby swan swim in the lake at the Changbaidao Forest Park in Shenyang, capital of northeast China's Liaoning Province, May 31, 2014. (Xinhua/Yao Jianfeng)
A pair of black swans and their baby swan swim in the lake at the Changbaidao Forest Park in Shenyang, capital of northeast China's Liaoning Province, May 31, 2014. (Xinhua/Yao Jianfeng)
A black swan and her baby swan swim in the lake at the Changbaidao Forest Park in Shenyang, capital of northeast China's Liaoning Province, May 31, 2014. (Xinhua/Yao Jianfeng)
A baby swan swims in the lake at the Changbaidao Forest Park in Shenyang, capital of northeast China's Liaoning Province, May 31, 2014. (Xinhua/Yao Jianfeng)