A photo shows that a man was feeding black-headed gulls.[Photo provided by Xinhua/Nian Xinhong]

Plenty of black-headed gulls wear their unique "wedding gowns" at Haigeng Dam in Kunming.[Photo provided by Xinhua/Pan Yue]

Part of black-headed gulls have already started their migration journey. The rest will depart one after another. Locals and tourists alike seize the last ten days to take pictures with those vibrant elves.[Photo provided by Xinhua/Nian Xinhong]

A photo shows that a black-headed gull is having grains to save energy for long-distance migration.[Photo provided by Xinhua/Nian Xinhong]

A lot of people go to Haigeng Dam, with a camera. They press the shutter key to capture the view with beautiful black-headed gulls together.[Photo provided by Xinhua/Nian Xinhong]

As "old friends" of the Spring City, black-headed gulls will come here again around November this year.[Photo provided by Xinhua/Nian Xinhong]

Although it is not the best time to see black-headed gulls as part of them flying back to Siberia, many citizens still come to feed them.[Photo provided by Xinhua/Nian Xinhong]

A photo shows a "greedy" black-headed gull holding a crouton bigger than its beak.[Photo provided by Xinhua/Pan Yue]

Quite a few people with grains and bread to give a farewell dinner at Haigeng Dam in Kunming.[Photo provided by Xinhua/Pan Yue]

A photo shows a soaring black-headed gull wearing its "wedding gown" looks very adorable. [Photo provided by Xinhua/Pan Yue]

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(Editors:Rachel, Tracy)