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Location India, Nagaland
Central coordinates 94o 21.00' East  25o 41.00' North
IBA criteria A1, A2
Area 4,000 ha
Altitude 1,600 - 2,426m
Year of IBA assessment 2004

Bombay Natural History Society

Site description Located in Phek district in southern Nagaland, Mount Zanibu IBA is known for its lake, rich forest and for the presence of Blyth’s Tragopan Tragopan blythii and Rufous-necked Hornbill Aceros nipalensis. The lake is known as Dzudu and is surrounded by dense forest (Choudhury 2002a). This IBA is hilly, with Mount Zanibu being the highest point at 2,426 m above msl. The area is covered with primary Subtropical Broadleaf forest, with small areas of Temperate Broadleaf forest on the hill tops.

Key Biodiversity 

AVIFAUNA: Besides the Rufous-necked Hornbill and Blyth’s Tragopan, Mrs Hume’s Pheasant Syrmaticus humiae has been reported, especially from the border, which is covered with secondary forest, trees and grass (Choudhury 2002b). There is an old record of another globally threatened species, the Purple Wood or Pale-capped Pigeon Columba punicea from near Phek (Ripley 1952), which is not far from this IBA. Except for a brief survey by Choudhury (2002a) there has been no detailed study in the area. The Purple Wood Pigeon has not been re-sighted by any one else recently.

OTHER KEY FAUNA: Hoolock Gibbon Hylobates hoolock, Stump-tailed Macaque Macaca arctoides, Asiatic Black Bear Ursus thibetanus, Dhole or Wild Dog Cuon alpinus, Leopard Panthera pardus, Barking Deer Muntiacus muntjak and Serow Nemorhaedus sumatraensis are the noteworthy mammals (A. U. Choudhury pers. comm. 2003).

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Blyth's Tragopan Tragopan blythii resident  2004  present  A1, A2  Vulnerable 
Mrs Hume's Pheasant Syrmaticus humiae resident  2004  present  A1  Near Threatened 
Pale-capped Pigeon Columba punicea resident  2004  present  A1  Vulnerable 
Rufous-necked Hornbill Aceros nipalensis resident  2004  present  A1  Vulnerable 
Streak-throated Barwing Actinodura waldeni resident  2004  present  A2  Least Concern 
Grey Sibia Heterophasia gracilis resident  2004  present  A2  Least Concern 
Beautiful Sibia Heterophasia pulchella resident  2004  present  A2  Least Concern 
White-naped Yuhina Yuhina bakeri resident  2004  present  A2  Least Concern 

IBA Monitoring

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

Agriculture and aquaculture annual & perennial non-timber crops - shifting agriculture happening now some of area/population (10-49%) very rapid to severe deterioration high
Biological resource use hunting & collecting terrestrial animals - intentional use (species being assessed is the target) happening now some of area/population (10-49%) slow but significant deterioration medium
Biological resource use logging & wood harvesting - unintentional effects: subsistence/small scale happening now small area/few individuals (<10%) moderate to rapid deterioration low


IUCN habitat Habitat detail Extent (% of site)
Forest   -
Artificial - terrestrial   -

Land use

Land-use Extent (% of site)
agriculture -
Notes: Agriculture
forestry -
Notes: Forestry

Acknowledgements Key contributors: Anwaruddin Choudhury, Khekiho Sohe and Thomas Kent.


Choudhury, A. U. (2002a) Major inland wetlands of north-eastern india. A report submitted to SACON, Coimbatore. Pp. 49.

Choudhury, A. U. (2002b) Survey of Mrs. Hume’s Pheasant: NE India. Final Report to OBC, UK Technical Report No. 5 of The Rhino Foundation for Nature NE India, Guwahati. Pp. 30.

Ripley, S. D. (1952) A collection of birds from the Naga Hills. J. Bombay Nat. Hist. Soc. 50: 475- 514.

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Mount Zanibu. Downloaded from on 24/10/2016

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