From March, China's largest inland saltwater lake, Qinghai Lake, welcomes countless migratory birds, including cormorants. With long, thin and hooked bills, the birds are good divers and fish-eaters, and are traditionally used by local fishermen to help catch fish. From April to June every year, the cormorants enter their breeding season. They build their nests and prepare for the arrival of their newborns. Join CGTN to take a closer look at these cute birds in northwest China's Qinghai Lake.