Native to East Asia, including China, Japan and Korea.
Vagrants to Alaska and northeastern North America.
Rare visitors to the United States.
This medium-sized (46 cm) gull has a wingspan of 126-128 cm.
It has yellow legs and a red and black spot at the end of the bill. This gull takes 4 years to reach full adult plumage.
It has a black tail - as suggested by its name.