Tillangchong, Camorta, Katchal, Nancowry and Trinkat

IBA Justification

The site was identified as important in 2004 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species'):
Species Current IUCN Red List Category Season Year(s) Population estimate at site IBA criteria met
Nicobar Scrubfowl Megapodius nicobariensis VU resident 2004 present A1, A2
Andaman Woodpigeon Columba palumboides NT resident 2004 present A2
Andaman Cuckoo-dove Macropygia rufipennis LC resident 2004 present A2
Andaman Boobook Ninox affinis LC resident 2004 present A2
Nicobar Sparrowhawk Accipiter butleri VU resident 2004 present A1, A2
Nicobar Bulbul Ixos nicobariensis NT resident 2004 present A1, A2
White-headed Starling Sturnia erythropygia LC resident 2004 present A2

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2004).

IBA Conservation

IBA conservation assessment
Year of assessment (most recent) State (condition) Pressure (threat) Response (action)
2013 near favourable very high medium
Was the whole site assessed? State assessed by Accuracy of information
yes habitat unknown

State (condition of the trigger species' populations)
Scientific name Common name Reference population Actual population Units % of population remaining Result
Megapodius nicobariensis Nicobar Scrubfowl 1200 64 individuals 6 not assessed

State (condition of the trigger species' habitats)
Habitat Habitat detail Reference area (ha) Actual area (ha) Habitat quantity (% remaining) Habitat quality (carrying capacity) Result
Forest 0 0 good (> 90%) moderate (70-90%) near favourable

Pressure (threats to the trigger species and/or their habitats)
Threat level 1 Threat level 2 Timing Scope Severity Result
Human intrusions and disturbance war, civil unrest and military exercises happening now whole area/population (>90%) very rapid to severe deterioration very high

Response (conservation actions taken for the trigger species and/or their habitats)
Protected-area designation Management planning Other conservation action Result
Whole area of site (>90%) covered by appropriate conservation designation A comprehensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species Unknown medium
For more information about IBA conservation status, please click here

IBA Protection

Protected area (PA) PA designation PA area (ha) Relationship of PA with IBA Overlap of PA with IBA (ha)
Tillongchang Island Sanctuary 3,643 protected area overlaps with site 1,683


Habitat (IUCN level 1) Habitat detail Extent (% of site)
Forest -
Grassland -
Marine Coastal/Supratidal -
Artificial/Terrestrial -
For more information about the IUCN Habitat classification, please click here.

Land use

Land-use Extent (% of site)
agriculture -
fisheries/aquaculture -
forestry -
nature conservation and research -
tourism/recreation -
urban/industrial/transport -

Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Tillangchong, Camorta, Katchal, Nancowry and Trinkat. Downloaded from on 04/10/2023.