
Seagulls fly over waters near the iconic Zhanqiao Bridge in Qingdao, a coastal city in east China's Shandong Province, Dec. 18, 2018. (Xinhua/Wang Haibin)

Seagulls rest on rocks near the iconic Zhanqiao Bridge in Qingdao, a coastal city in east China's Shandong Province, Dec. 18, 2018. (Xinhua/Wang Haibin)

Tourists admire flying seagulls near the iconic Zhanqiao Bridge in Qingdao, a coastal city in east China's Shandong Province, Dec. 18, 2018. (Xinhua/Wang Haibin)

Tourists admire seagulls near the iconic Zhanqiao Bridge in Qingdao, a coastal city in east China's Shandong Province, Dec. 18, 2018. (Xinhua/Wang Haibin)

Tourists admire flying seagulls near the iconic Zhanqiao Bridge in Qingdao, a coastal city in east China's Shandong Province, Dec. 18, 2018. (Xinhua/Wang Haibin)

Tourists admire flying seagulls near the iconic Zhanqiao Bridge in Qingdao, a coastal city in east China's Shandong Province, Dec. 18, 2018. (Xinhua/Wang Haibin)

Tourists admire flying seagulls near the iconic Zhanqiao Bridge in Qingdao, a coastal city in east China's Shandong Province, Dec. 18, 2018. (Xinhua/Wang Haibin)

Tourists take photos of flying seagulls near the iconic Zhanqiao Bridge in Qingdao, a coastal city in east China's Shandong Province, Dec. 18, 2018. (Xinhua/Wang Haibin)