Black-headed gulls hover over the returning fishing boats in Gujia Island, Qingdao West Coast New Area. [Photo/IC]

Qingdao West Coast New Area boasts a vibrant and diverse ecosystem, attracting a large number of black-headed gulls and other waterbirds. [Photo/IC]

A flock of black-headed gulls skim the sea. [Photo/IC]

Coastal mud flats attract large numbers of black-headed gulls in Qingdao West Coast New Area. [Photo/IC]

Black-headed gulls forage by the shallow water in Gujia Island, Qingdao West Coast New Area. [Photo/IC]

Black-headed gulls fly over the seaside of Qingdao West Coast New Area. [Photo/IC]