Wildlife experts have spotted at least 18 Bengal tigers in Trans-Boundary Manas Conservation Complex area. It is a joint effort of India and Bhutan to conserve bio-diversity of Manas and Royal Manas National park. Four tigers, have been commonly photographed in both the countries. A total of 204 cameras were used for 64 days in core areas for this exercise. The camera traps in Bhutan were fixed with the financial, technical and field support of World Wildlife Fund, WWF.In both the national parks, there was a combined record of 60 species of mammals such as Bengal tigers and Clouded Leopard. Over 500 species of birds and 1000 plant species were also recorded. Nature lovers from both the countries urged for a joint conservation and management plan for Manas and Royal Manas parks.