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The site was identified as important in 1994 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List1	Season	Year(s)	Size	IBA criteria
Red-billed Tropicbird Phaethon aethereus	LC	breeding	1993	300 breeding pairs	A4ii, B1ii
Persian Shearwater Puffinus persicus	LC	breeding	1993	10,000-19,999 individuals	A4ii, B1ii, B2
Jouanin's Petrel Bulweria fallax	NT	non-breeding	1993	200 individuals	A1, A4ii, B1ii, B2
Masked Booby Sula dactylatra	LC	breeding	1993	8,250-13,250 breeding pairs	A4ii, B1ii
Socotra Cormorant Phalacrocorax nigrogularis	VU	breeding	1993	3,000-5,000 breeding pairs	A1, A4i, B1i, B2
Sooty Gull Larus hemprichii	LC	resident	1993	5,000-10,000 breeding pairs	A4i, B1i, B3
Bridled Tern Onychoprion anaethetus	LC	breeding	1993	2,000 breeding pairs	B1i
Greater Crested Tern Thalasseus bergii	LC	breeding	1993	3,100 breeding pairs	B1i
Arabian Wheatear Oenanthe lugentoides	LC	resident	1993	present	B3
A4iii Species group - seabirds	n/a	breeding	1993	min 10,000 breeding pairs	A4iii

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (1994) may differ.

Habitat1	Habitat detail	% of IBA
Desert		major (>10)
Marine Coastal/Supratidal		major (>10)
Marine Neritic		major (>10)

1. IUCN Habitat classification.

Land use	% of IBA
fisheries/aquaculture	minor (<10)
other	minor (<10)

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Halaaniyaat Islands (Oman). Downloaded from https://datazone.birdlife.org/site/factsheet/halaaniyaat-islands-iba-oman on 23/11/2024.