Qarnain Island

IBA Criteria

Year of most recent IBA criteria assessment: 2017

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Red-billed Tropicbird Phaethon aethereus LC breeding 2005-2017 max 222 breeding pairs A4, B3a
Sooty Gull Larus hemprichii LC breeding 2005-2017 550-1,350 breeding pairs A4, B2a, B3a
Bridled Tern Onychoprion anaethetus LC breeding 2005-2017 4,000-6,500 breeding pairs A4, B3a
Lesser Crested Tern Thalasseus bengalensis LC breeding 2005-2017 25,000-45,000 breeding pairs A4, B3a
A4iii Species group - waterbirds n/a breeding 2005-2017 29,900-50,485 breeding pairs B3b

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here

IBA Monitoring

Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2017 high very unfavourable low
Was the whole site covered? Yes State assessed by Population
Accuracy of information medium

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Invasive and other problematic species and genes invasive non-native/alien species/diseases - named species happening now whole area/population (>90%) slow but significant deterioration high

Condition of key/trigger populations (state)
Scientific Common TargetPop ActualPop Units Remaining Result
Phaethon aethereus Red-billed Tropicbird 125 0 breeding pairs 0 very unfavourable
Larus hemprichii Sooty Gull 950 1350 breeding pairs 100 favourable
Onychoprion anaethetus Bridled Tern 5250 6500 breeding pairs 100 favourable
Sterna repressa White-cheeked Tern 4000 1500 breeding pairs 38 very unfavourable
Thalasseus bengalensis Lesser Crested Tern 35000 34000 breeding pairs 98 favourable

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Whole area of site (>90%) covered by appropriate conservation designation No management plan exists but the management planning process has begun Some limited conservation initiatives are in place low
For more information about IBA monitoring please click here

IBA Protection

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Qarnein Island Marine Protected Area 0 protected area contains site 300


IUCN Habitat Habitat detail Extent (% of site)
Marine Intertidal -
Marine Neritic -
Marine Coastal/Supratidal -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
urban/industrial/transport -
tourism/recreation -
fisheries/aquaculture -
other -
For further information about the land use classification please click here.

Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Qarnain Island. Downloaded from on 25/06/2022.