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Location India, West Bengal
Central coordinates 88o 20.00' East  24o 55.25' North
IBA criteria A1
Area 0 ha
Altitude 30 - 35m
Year of IBA assessment 2004

Bombay Natural History Society

Site description The Naya Bandh area extends from the Indo-Bangla border to Naya Bandh Beel. It is a low lying area which includes several seasonal wetlands, mainly Chalka, Bakla, Vikon, Morkatta, Mona and Sirishdang. These distinct wetlands together form the Naya Bandh wetland complex. This wetland complex depends on two rivers, namely Tangon and Purarbhaba. During monsoon, the area gets connected with the River Punarbhaba and gets flooded. After the monsoon, the water recedes and several small wetlands develop, with a rich variety of aquatic vegetation. There is a small monoculture plantation of Barringtonia acutangula at the Bangladesh border.

Key Biodiversity 

AVIFAUNA: About 150 species of birds have been identified in this IBA (S. Jha, pers. comm. 2003), of which six are globally threatened, five Near Threatened, and 11 biome species. Among the thousands of other ducks, about 140 Ferruginous Duck Aythya nyroca were seen in January 2003 (Anon. 2003). In 1994, the 1% biogeographic population of this species was estimated at 100 (Rose and Scott 1994), but recently, Wetlands International (2002) could not determine the 1% population threshold of this species as it was difficult to assess the tens of thousands that were found breeding in Inner Mongolia. It is also very common in the Tibetan Plateau (Birdlife International 2001). About 70,000 individuals winter in a large wetland habitat locally called hoars in northeast Bangladesh. However, BirdLife International (2001) still keeps it in the Near Threatened category, as the population is declining, mainly due to hunting and drainage of its wetland habitats. This site lies in Biome-11 (Indo-Malayan Tropical Dry Zone). BirdLife International (undated) has listed 59 species in this biome, of which 11 have been found here. Most of the birds listed are quite common and presently of not much conservation concern. Despite the fact that this site has six species considered globally threatened, none of them have significant populations in this IBA. Naya Bandh is designated as an IBA for its value as a waterfowl habitat. If proper protection is provided, the Naya Bandh wetlands could easily host more than 20,000 waterfowl.

OTHER KEY FAUNA: No information is available on other key fauna.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Baer's Pochard Aythya baeri winter  2004  present  A1  Critically 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 
Greater Spotted Eagle Clanga clanga winter  2004  present  A1  Vulnerable 
Indian Vulture Gyps indicus non-breeding  2004  present  A1  Critically Endangered 

IBA Monitoring

2003 high not assessed not assessed
Good - based on reliable and complete / representative data

Agriculture and aquaculture annual & perennial non-timber crops - small-holder farming likely in long term (beyond 4 years) some of area/population (10-49%) very rapid to severe deterioration medium
Agriculture and aquaculture marine and freshwater aquaculture - industrial aquaculture happening now small area/few individuals (<10%) slow but significant deterioration low
Biological resource use gathering terrestrial plants - unintentional effects (species being assessed is not the target) happening now some of area/population (10-49%) slow but significant deterioration medium
Biological resource use hunting & collecting terrestrial animals - intentional use (species being assessed is the target) happening now some of area/population (10-49%) moderate to rapid deterioration high
Pollution agricultural & forestry effluents - herbicides and pesticides happening now small area/few individuals (<10%) slow but significant deterioration low


IUCN habitat Habitat detail Extent (% of site)
Forest   -
Shrubland   -
Wetlands (inland)   -

Land use

Land-use Extent (% of site)
agriculture -
Notes: Agriculture
fisheries/aquaculture -
Notes: Fishing
forestry -
Notes: Forestry

Acknowledgements Key contributor: Samiran Jha.


Anonymous (2003) Inland Wetlands of Central West Bengal. Unpublished Report, submitted to Sâlim Ali Centre for Ornithology and Natural History, Coimbatore, under the Project “Inland Wetlands of India” 2002. Green Peoples India, West Bengal.

BirdLife International (2001) Threatened Birds of Asia: The BirdLife International Red Data Book. BirdLife International, Cambridge, U.K.

BirdLife International (undated) Important Bird Areas (IBAs) in Asia: Project briefing book. BirdLife International, Cambridge, U.K., unpublished.

Rose, P. M. and Scott, D. A. (1994) Waterfowl Population Estimates: International Waterfowl and Wetlands Research Bureau (IWRB Special Publication 29). Slimbridge, U.K.

Wetlands International (2002) Waterbirds Population Estimates: Third Edition. Wetlands International Global Series No. 12. Wageningen, The Netherlands.

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Recommended citation  BirdLife International (2015) Important Bird and Biodiversity Area factsheet: Naya Bandh Wetland Complex. Downloaded from on 26/11/2015

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