Producing China's own version of the BBC's Discovery documentaries is what occupies the mind of Yan Baoping.

Over the past seven years, she has produced tons of video footage, recording the lives of endangered birds in uninhabited areas, thanks to network camera surveillance systems she and her team have developed and installed in nature reserves in Qinghai province and the Xinjiang Uygur autonomous region.

Some of the footage has recorded moments even bird experts have never seen, she said.