PD Explainer | City tweets: Beijing through the ears of three foreign birdwatchers

As Beijing's streets grow quieter, its birdsong grows livelier. For three birders from the UK and Belgium, these changes tell a bigger story of the city's improving environment. What does traffic noise have to do with bird conservation? And how is Beijing making room for more wildlife? Join People's Daily reporter Wang Ruofan to explore the city's changing soundscape and what it reveals about Beijing's efforts to live in greater harmony with nature. (Produced by Wang Ruofan, He Jieqiong, Ni Tao, Li Jiayao, Qin Yudong, Chen Zhengxi; interns Wei Ming, Zeng Xingcheng, Song Ruoyu and Tian Yanan also contributed to this video.)