The wetlands of Pingdu, a county-level city in Qingdao, Shandong province, began seeing a major influx of migratory birds in early December. [Photo by Tian Dafang/For chinadaily.com.cn]

A large number of migratory birds flew into the wetlands of Pingdu, a county-level city in Qingdao, Shandong province, in early December. It is now peak season for the birds.

The wetlands of Pingdu, a county-level city in Qingdao, Shandong province, began seeing a major influx of migratory birds in early December. [Photo by Tian Dafang/For chinadaily.com.cn]

The wetlands of Pingdu, a county-level city in Qingdao, Shandong province, began seeing a major influx of migratory birds in early December. [Photo by Tian Dafang/For chinadaily.com.cn]

The wetlands of Pingdu, a county-level city in Qingdao, Shandong province, began seeing a major influx of migratory birds in early December. [Photo by Tian Dafang/For chinadaily.com.cn]

The wetlands of Pingdu, a county-level city in Qingdao, Shandong province, began seeing a major influx of migratory birds in early December. [Photo by Tian Dafang/For chinadaily.com.cn]

The wetlands of Pingdu, a county-level city in Qingdao, Shandong province, began seeing a major influx of migratory birds in early December. [Photo by Tian Dafang/For chinadaily.com.cn]

The wetlands of Pingdu, a county-level city in Qingdao, Shandong province, began seeing a major influx of migratory birds in early December. [Photo by Tian Dafang/For chinadaily.com.cn]