In the hustle and bustle metropolis of Hong Kong, the 380-hectare Mai Po Nature Reserve provides a paradise for 60,000 to 90,000 migratory birds through a series of active management methods. WATCH MORE: https://thestartv.com/c/newsSUBSCRIBE: https://cutt.ly/TheStarLIKE: https://fb.com/TheStarOnline