Gulf coral islands

IBA Criteria

Year of most recent IBA criteria assessment: 1994

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Socotra Cormorant Phalacrocorax nigrogularis VU breeding 1991-1993 30 breeding pairs A1, B2
Bridled Tern Onychoprion anaethetus LC breeding 1993 34,400 breeding pairs A4i, B1i
Saunders's Tern Sternula saundersi LC breeding 1993 2-3 breeding pairs B3
Saunders's Tern Sternula saundersi LC non-breeding 1993 50 individuals B3
White-cheeked Tern Sterna repressa LC breeding 1993 10,400 breeding pairs A4i, B1i, B3
Lesser Crested Tern Thalasseus bengalensis LC breeding 1993 24,250 breeding pairs A4i, B1i
Greater Crested Tern Thalasseus bergii LC breeding 1993 3,500 breeding pairs A4i, B1i
A4iii Species group - waterbirds n/a breeding 1993 72,550 breeding pairs A4iii

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)
2013 high not assessed low
Was the whole site covered? Yes State assessed by unset
Accuracy of information unknown

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Energy production and mining oil and gas drilling likely in short term (within 4 years) majority/most of area/population (50-90%) very rapid to severe deterioration high

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Little/none of site covered (<10%) A management plan exists but it is out of date or not comprehensive Not assessed low
For more information about IBA monitoring please click here


IUCN Habitat Habitat detail Extent (% of site)
Marine Neritic -
Coastline -
Desert -
For further information about the habitat classification please click here.

Land use

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

Recommended citation
BirdLife International (2023) Important Bird Areas factsheet: Gulf coral islands. Downloaded from on 04/02/2023.