Description: At the foot of the Meghalaya ranges in the middle of Tahirpur and Dharmapasha Upazilla under Sunamgonj district in north-east Sylhet is a vast swampland popularly known as Tangoar Haor that spans over an area of nearly 100 square kilometers. This swampland is inhabited by hundreds of different species of birds, fish, frogs, reptiles and invertebrates.