Guizhou's Caohai welcomes first migrant birds

The first of more than 1,400 black-necked cranes arrives at the Caohai National Nature Reserve to pass the winter in Weining county, Southwest China's Guizhou province, on Nov 13-14. [Photo/IC]

In addition to black-necked cranes, more than 10,000 grey cranes and bar-headed gooses have also come to the Caohai National Nature Reserve to pass the winter. [Photo/IC]

The Caohai National Nature Reserve covers an area of 9,600 hectares and is one of China's main wintering grounds for black-necked cranes. [Photo/IC]