Seagulls flock to a beach in the Bohai Sea in Binzhou city, East China’s Shandong province, May 21, 2015. The nature reserve, known for its shell-covered beach ridge and wetland, in Binzhou is home to 45 kinds of birds, including some under state protection, thanks to years of protection by policemen stationed there. (Photo: China News Service/Wang Zhanjun)
