There had been several different herds of Sambar over the years that had gotten to know him well and accept him, that would allow him to approach just a few meters away. Thus beginning in July 2003 Liu and his colleagues actually spent more than 300 days in the high mountains photographing Sambar.
長年在高山上攝影，劉思沂與野生水鹿群已建立難能可貴的情感，已有數個不同族群的水鹿熟悉他、接納他，可以讓他在離鹿群幾公尺內活動，因此從 2003 年 7 月開始，劉思沂和工作夥伴實際駐守在高山拍攝鹿群的天數超過 300 天。