The Kanwar Taal or Kabar Taal Lake or Kabartal Wetland situated in Begusarai region of Bihar, India, is Asia's biggest freshwater oxbow lake. In November 2020, the Service of Climate, Woods and Environmental Change (MoEFCC) pronounced it the primary Ramsar site in Bihar. It is one of the 85 Ramsar destinations in India now.
Kanwar jheel, as it is privately called, is found 22 km north-west of Begusarai Town in Manjhaul. It is a remaining oxbow lake, framed due to wandering of Burhi Gandak stream, a feeder of Ganga, in the land past. It covers 2,620 hectares of the Indo-Gangetic fields in the northern Bihar State. During the dry season, areas of marshland dry out and are utilized for farming. Huge biodiversity is available, with 165 plant species and 394 creature species recorded, including 221 bird species.
The Wetland is a significant visit along the Focal Asian Flyway, with 58 transient waterbirds utilizing it to rest and refuel. It is likewise an important site for fish biodiversity with north of 50 species reported. Five fundamentally imperiled species possess the site, including three vultures - the red-headed vulture white-rumped vulture and Indian vulture and two waterbirds, the amiable lapwing and Baer's pochard Significant dangers to the Site incorporate water the board exercises like waste, water deliberation, damming and canalization.