Beijing, November 6 (Youth.cn) - On November 4th, 2023, at the Haigeng Dam in Dianchi Lake, Kunming, the black-headed gulls arrived as scheduled, and a large number of citizens came to feed them. The black-headed gulls have become a business card for winter tourism in Kunming, attracting a large number of tourists from other provinces to mark their visit. Photo/ VCG