|Central coordinates||95o 43.50' East 27o 39.50' North|
|Year of IBA assessment||2004|
Site description Dum Duma (2,880 ha), Dangori (920 ha) and Kumsong (2,250 ha), these three reserve forests in Tinsukia district, in eastern Assam constitute the IBA. The forests of all areas are Tropical Evergreen Rainforest types dominated by Dipterocarpus macrocarpus (Hollong) on flat plains. All these areas are surrounded by tea gardens and human settlements. These forests are known for their populations of White-winged Duck Cairina scutulata, but are also important for other wildlife, especially primates. The largest confirmed gathering of the White-winged Duck in the world was recorded in Dangori RF, where 14 were seen roosting at one site in 1995 (Choudhury 1996, 1998). The vegetation type of the sites is mainly Tropical Evergreen Rainforest, dominated by Dipterocarpus macrocarpus, Shorea assamica, Mesua ferrea, Terminalia myriocarpa, Artocarpus chaplasha, Dillenia indica, Anthocephalus cadamba, Bombax ceiba and Ficus spp. There are many jungle pools or ponds in these areas, which are the major haunts of the White-winged Duck.
AVIFAUNA: The site is important for rainforest birds. More than 100 species have been recorded but more are likely to occur (A. U. Choudhury pers. comm. 2002). The White-winged Duck and Brown Hornbill Anorrhinus tickelli are noteworthy species while there are reports of the Masked Finfoot Heliopais personata from Dum Duma RF (Choudhury 1997). Sino-Himalayan Subtropical Forest species (Biome-8) such as Blue-throated Barbet Megalaima asiatica, Bay Woodpecker Blythipicus pyrrhotis, White-throated Bulbul Alophoixus flaveolus, Black-winged Cuckoo-shrike Coracina melaschistos and Nepal Fulvetta Alcippe nipalensis are commonly seen. This site has been selected as an IBA as it is one of the most important areas for the long-term protection of the globally Endangered White-winged Duck.
OTHER KEY FAUNA: Leopard Panthera pardus, Hoolock Gibbon Hylobates hoolock, Capped Langur Trachypithecus pileatus, Rhesus Macaque Macaca mulatta, Pig-tailed Macaque M. nemestrina, Slow Loris Nycticebus coucang, Malayan Giant Squirrel Ratufa bicolor, Common Giant Flying Squirrel Petaurista petaurista, Barking Deer or muntjak Muntiacus muntjak and a small herd of Wild Water Buffalo Bubalus arnee (= bubalis). The Wild Elephant Elephas maximus and Tiger Panthera tigris are no longer found here.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|White-winged Duck Asarcornis scutulata||resident||2004||present||-||A1||Endangered|
|Lesser Adjutant Leptoptilos javanicus||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|
|Masked Finfoot Heliopais personatus||resident||2004||present||-||A1||Endangered|
|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||happening now||some of area/population (10-49%)||very rapid to severe deterioration||high|
|Biological resource use||fishing & harvesting aquatic resources - unintentional effects: subsistence/small scale||happening now||small area/few individuals (<10%)||slow but significant deterioration||low|
|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|
|Biological resource use||logging & wood harvesting - unintentional effects: subsistence/small scale||happening now||small area/few individuals (<10%)||moderate to rapid deterioration||low|
|Human intrusions and disturbance||work and other activities||happening now||small area/few individuals (<10%)||slow but significant deterioration||low|
|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)|
|Artificial - terrestrial||-|
|Land-use||Extent (% of site)|
Acknowledgements Key contributors: Anwaruddin Choudhury and Kulojyoti Lahkar.
Choudhury, A. U. (1996) Survey of the White-winged Wood Duck and Bengal Florican in Tinsukia district and adjacent areas of Assam and Arunachal Pradesh. The Rhino Foundation for Nature in NE India, Guwahati.
Choudhury, A. U. (1997) Current status of the Masked finfoot in India. Newsletter for Birdwatchers 37(5): 90-91.
Choudhury, A. U. (1998) Status and conservation of the white-winged duck in eastern Assam, India. OBC Bulletin 28:14-17.
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Recommended citation BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Dum Duma, Dangori and Kumsong Reserve Forests. Downloaded from http://www.birdlife.org on 12/02/2016
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