|Central coordinates||94o 17.50' East 27o 33.50' North|
|IBA criteria||A1, A2, A3|
|Altitude||100 - 1,000m|
|Year of IBA assessment||2004|
Site description This site includes two reserve forests, Subansiri in Dhemaji district and Dulung in Lakhimpur district in northeastern Assam. The river Subansiri passes through the middle of the IBA, while its tributaries Pavo, Geruka, Dirpai and Dulung drain other parts of the site. It is here that the Subansiri River debouches into the plains, forming a broad braided stretch of aquatic and terrestrial habitats. The terrain of the site is hilly, as it covers foothills of the Eastern Himalayas. Small flat areas occur along the southern portion. The higher parts of Subansiri Reserve Forest are more than 300 m above msl. The site is known for wildlife, especially Asian Elephant Elephas maximus and birds. There was an excellent patch of terai grassland in Dirpai area of Subansiri RF, where the Bengal Florican Houbaropsis bengalensis and the Swamp Francolin Francolinus gularis used to occur. While the call of the francolins is still heard, the florican has become sporadic. This is mainly due to encroachment and settlements in its grassland habitat. There is also a record of the Chestnut-breasted or Red-breasted Hill Partridge Arborophila mandellii from the higher areas of Subansiri RF (Choudhury 2000). The entire area is clothed with thick, lush Tropical Evergreen and Semi-evergreen forests, with absolute habitat contiguity with Taley Valley Wildlife Sanctuary (IBA) of Arunachal Pradesh, across the river Subansiri.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Swamp Francolin Francolinus gularis||resident||2004||present||-||A1||Vulnerable|
|Chestnut-breasted Partridge Arborophila mandellii||resident||2004||present||-||A1||Vulnerable|
|White-winged Duck Asarcornis scutulata||resident||2004||present||-||A1||Endangered|
|Lesser Adjutant Leptoptilos javanicus||resident||2004||present||-||A1||Vulnerable|
|Pallas's Fish-eagle Haliaeetus leucoryphus||resident||2004||present||-||A1||Vulnerable|
|White-rumped Vulture Gyps bengalensis||non-breeding||2004||present||-||A1||Critically Endangered|
|Slender-billed Vulture Gyps tenuirostris||non-breeding||2004||present||-||A1||Critically Endangered|
|Bengal Florican Houbaropsis bengalensis||resident||2004||present||-||A1||Critically Endangered|
|Rufous-necked Hornbill Aceros nipalensis||resident||2004||present||-||A1||Vulnerable|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Land-use||Extent (% of site)|
Acknowledgements Key contributors: Anwaruddin Choudhury, Neeraj Vagholikar, Manju Menon and Bikul Goswami.
Choudhury, A. U. (1996) The marbled cat Felis marmorata Martin in Assam- some recent records. J. Bombay Nat. Hist. Soc. 93(3): 583- 584.
Choudhury, A. U. (2000) The Birds of Assam, Gibbon Books & WWFIndia NE Region, Guwahati. Pp. 240.
Choudhury, A. U. (2002) Comments on the Environmental Impact Assessment (EIA) of Kameng and Lower Subansiri Hydroelectric Projects, Arunachal Pradesh and Assam. Pp. 8. + maps.
Saghal, B. and Sharma, S. C. (2002) Lower Subansiri Site Visit. Report submitted to Government of India, New Delhi. Pp. 22.
Vagholikar, N. and Ahmed, M. F. (2003) Tracking a hydel project - the story of Lower Subansiri. The Ecologist Asia 11(1): 25-32.
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Recommended citation BirdLife International (2014) Important Bird Areas factsheet: Subansiri. Downloaded from http://www.birdlife.org on 31/08/2014
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