Every late autumn, groups of black-headed gulls arrive "as scheduled" in Luzhou city on the upper reaches of the Yangtze River. Circling over the water, the red-billed oceanic birds always attract a crowd of bird-watchers.
Every late autumn, groups of black-headed gulls arrive "as scheduled" in Luzhou city on the upper reaches of the Yangtze River. Circling over the water, the red-billed oceanic birds always attract a crowd of bird watchers.
© Provided by Xinhua CHENGDU, Oct. 6 (Xinhua) Every late autumn, groups of black-headed gulls arrive as scheduled in Luzhou City on the upper reache