A heron and a European herring gull are seen on the iced sea of Jiaozhou Bay in Qingdao, Shandong province, Feb 1, 2018. [Photo by Wang Haibin/dailyqd.com]

Two Chinese egrets are seen flying over the Jiaozhou Bay of Qingdao, Shandong province, Feb 1, 2018. [Photo by Wang Haibin/dailyqd.com]