Two herds of PÃ re David 's Deer were reintroduced to Nan Haizi Milu Park , Beijing , and Dafeng Reserve , Jiangsu Province , China in the late 1980s . Two herds of PÃ re David 's Deer were reintroduced to Nanhaizi Milu Park , Beijing , and Dafeng Reserve , Jiangsu Province , China , in the late 1980s .