The ice and snow begins to melt and large flocks of migratory birds are seen foraging in the wetland of Jiaozhou Bay in Qingdao, Shandong province, Feb 1, 2018. [Photo by Wang Haibin/dailyqd.com]

Flocks of Mergus mergansers seek for food in a fishing pond near the Jiaozhou Bay wetland in the eastern coastal city of Qingdao, Shandong province, Feb 1, 2018. [Photo by Wang Haibin/dailyqd.com]