The last thing you would expect to find in an ever-expanding city like Beijing is Wildlife. But it's here!
In fact Beijing has a greater variety of bird species than London, New York and Paris.
This 8 part series will explore Beijing's wildlife and the people trying to conserve it.
In Part 4 we follow a group of wildlife enthusiasts who lay camera traps in the mountains north of Beijing, capturing footage of some of Beijing's most secretive wildlife.