TINSUKIA, Nov 15 – Situated in the extreme east of the State and 13 km north of Tinsukia city, Dibru-Saikhowa is one of the bio-diversity hotspots of the country. But rare avian species have been facing the threat of extinction here. If people are not aware about the need to conserve all this, soon the area will lose this rich bio-diversity as well as diverse avifauna in the coming years.