Visitors watch brown-headed seagulls at a seaside recreation area in Bang Pu, central Thailand's Samut Prakan Province, Dec. 20, 2016. The shores of the Gulf of Thailand serve as a major wintering site for flocks of brown-headed gulls that migrate southwards between mid-October and the end of April.(Xinhua/Li Mangmang)
A woman and her daughter feed brown-headed seagulls at a seaside recreation area in Bang Pu, central Thailand's Samut Prakan Province, Dec. 20, 2016. The shores of the Gulf of Thailand serve as a major wintering site for flocks of brown-headed gulls that migrate southwards between mid-October and the end of April.(Xinhua/Li Mangmang)
A man takes photos of his two companions feeding a flock of brown-headed seagulls at a seaside recreation area in Bang Pu, central Thailand's Samut Prakan Province, Dec. 20, 2016. The shores of the Gulf of Thailand serve as a major wintering site for flocks of brown-headed gulls that migrate southwards between mid-October and the end of April. (Xinhua/Li Mangmang)
A flock of brown-headed seagulls are seen at a seaside recreation area in Bang Pu, central Thailand's Samut Prakan Province, Dec. 20, 2016. The shores of the Gulf of Thailand serve as a major wintering site for flocks of brown-headed gulls that migrate southwards between mid-October and the end of April.(Xinhua/Li Mangmang)
A brown-headed seagull strolls on a stone railing at a seaside recreation area in Bang Pu, central Thailand's Samut Prakan Province, Dec. 20, 2016. The shores of the Gulf of Thailand serve as a major wintering site for flocks of brown-headed gulls that migrate southwards between mid-October and the end of April.(Xinhua/Li Mangmang)
A couple takes photos of a brown-headed seagull at a seaside recreation area in Bang Pu, central Thailand's Samut Prakan Province, Dec. 20, 2016. The shores of the Gulf of Thailand serve as a major wintering site for flocks of brown-headed gulls that migrate southwards between mid-October and the end of April.(Xinhua/Li Mangmang)
Six brown-headed seagulls rest in a row on a stone railing at a seaside recreation area in Bang Pu, central Thailand's Samut Prakan Province, Dec. 20, 2016. The shores of the Gulf of Thailand serve as a major wintering site for flocks of brown-headed gulls that migrate southwards between mid-October and the end of April. Xinhua/Li Mangmang)
Several brown-headed seagulls are seen hovering over a seaside recreation area in Bang Pu, central Thailand's Samut Prakan Province, Dec. 20, 2016. The shores of the Gulf of Thailand serve as a major wintering site for flocks of brown-headed gulls that migrate southwards between mid-October and the end of April. (Xinhua/Li Mangmang)
