White Bellied Heron:

Being a rare bird species, it is found in only selective sites of Assam, Arunachal Pradesh and Bhutan. This world's second largest heron is facing a diminishing population. Disturbance in habitat areasand harvesting of wetland sources has made them so critically endangered and as low as 250 left in the world of which 50 is in India. Although it breeds specifically in Namdapha Tiger Reserves, it is also found is other protected areas.