|Central coordinates||76o 26.00' East 12o 24.00' North|
|IBA criteria||A1, A4i, A4iii|
|Year of IBA assessment||2004|
Site description The 12,500 ha Krishnarajasagar reservoir was formed by impounding the Kaveri river at Kannambadi in 1924. It is located at the confluence of three rivers, the Kaveri and its tributaries the Hemavathi and the Lakshmanathirtha. It was one of the earliest large dams constructed in India and at present irrigates 0.4 million hectares of land in Mysore and Mandya districts of southern Karnataka. Large marshes form at the points where the rivers enter the reservoir. They come into existence every year as the reservoir fills up by September, and are used by thousands of migrant wader birds on passage. The marshes and mudflats expand as water is withdrawn from the reservoir for irrigation and they are at peak in December-February. Fields of millet, sorghum and vegetables are cultivated around the reservoir. The floodplain marshes are used in summer to cultivate vegetables. During monsoon, water lilies are cultivated for their edible roots.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Northern Pintail Anas acuta||-||2004||present [units unknown]||-||A4i||Least Concern|
|Bar-headed Goose Anser indicus||-||2004||present [units unknown]||-||A4i||Least Concern|
|Spot-billed Pelican Pelecanus philippensis||-||2004||present [units unknown]||-||A1||Near Threatened|
|White-rumped Vulture Gyps bengalensis||-||2004||present [units unknown]||-||A1||Critically Endangered|
|Greater Spotted Eagle Aquila clanga||-||2004||present [units unknown]||-||A1||Vulnerable|
|Little Stint Calidris minuta||-||2004||present [units unknown]||-||A4i||Least Concern|
|Temminck's Stint Calidris temminckii||-||2004||present [units unknown]||-||A4i||Least Concern|
|Brown-headed Gull Larus brunnicephalus||-||2004||present [units unknown]||-||A4i||Least Concern|
|A4iii Species group - waterbirds||unknown||2004||20,000 individuals||unknown||A4iii|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Land-use||Extent (% of site)|
Acknowledgements Key contributors: Thejaswi Shivanand and A. Shivaprakash.
Thejaswi, S. (ed.) The Birds of Mysore: An Annotated Checklist of the birds of Mysore, Mandya and Chamarajanagar districts. Unpublished.
Wetlands International (2002) Waterbird Population Estimates: Third Edition. Wetlands International Global Series No. 12, Wageningen, The Netherlands.
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Recommended citation BirdLife International (2013) Important Bird Areas factsheet: Krishnarajasagar Reservoir. Downloaded from http://www.birdlife.org on 06/12/2013
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