important areas for Thailand’s wildlife: the Western Forest Complex (WEFCOM) and the Kaeng Kra Chan National Park (KKNP). The core area in WEFCOM has been protected through the creation of two wildlife sanctuaries comprising of 6,000 km2.  These large sanctuaries are named Huai Kha Khaeng and Thung Yai (HKK-TY) and were awarded the UNESCO’s Natural World Heritage status in 1991, based on the areas rich and unique biodiversity. WCS-Thailand has been working to protect tigers in HKK-TY since 1997 through surveys and monitoring. The density of the tiger population in the tropical forests of HKK-TY was recently estimated using camera traps during 2004-2005 determining that this is an important site for tigers in Thailand.