|Central coordinates||55o 58.00' East 17o 30.00' North|
|IBA criteria||A1, A4i, A4ii, A4iii, B1i, B1ii, B2, B3|
|Altitude||0 - 500m|
|Year of IBA assessment||1994|
Site description A group of four main islands of mostly very rugged topography off the Dhofar coast, up to 500 m high, although there are some flat areas. There is a massive limestone cliff on the north-east point of Al Hallaniyah island. Most of the land is bare or supports only a very sparse, low shrub layer; the islands of Jazirat al Qibliyah and Jazirat al Hasikiyah are lightly covered in bird guano. The islands are in the centre of a zone of strong upwelling of cold, nutrient-rich water during the south-west monsoon of May–September (especially June–August), when seas are very rough and very strong winds, driving spray and mist prevail. The only habitation is a village at the western end of Al Hallaniyah (c.150 people), with an airstrip. Local people have boats and visit all the islands, weather permitting.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Puffinus lherminieri||breeding||1993||10,000-19,999 individuals||poor||A4ii, B1ii, B2||Not Recognised|
|Jouanin's Petrel Bulweria fallax||non-breeding||1993||200 individuals||poor||A1, A4ii, B1ii, B2||Near Threatened|
|Red-billed Tropicbird Phaethon aethereus||breeding||1993||300 breeding pairs||poor||A4ii, B1ii||Least Concern|
|Masked Booby Sula dactylatra||breeding||1993||8,250-13,250 breeding pairs||poor||A4ii, B1ii||Least Concern|
|Socotra Cormorant Phalacrocorax nigrogularis||breeding||1993||3,000-5,000 breeding pairs||poor||A1, A4i, B1i, B2||Vulnerable|
|Sooty Gull Larus hemprichii||resident||1993||5,000-10,000 breeding pairs||poor||A4i, B1i, B3||Least Concern|
|Greater Crested Tern Thalasseus bergii||breeding||1993||3,100 breeding pairs||poor||B1i||Least Concern|
|Bridled Tern Onychoprion anaethetus||breeding||1993||2,000 breeding pairs||poor||B1i||Least Concern|
|Arabian Wheatear Oenanthe lugentoides||resident||1993||present||-||B3||Least Concern|
|A4iii Species group - seabirds||breeding||1993||20,000 individuals||unknown||A4iii|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Land-use||Extent (% of site)|
|Notes: Islanders and visiting fishermen take eggs and adults of Sula dactylatra and Sterna bergii and eggs of Phalacrocorax nigrogularis and Larus hemprichii for food.|
Other biodiversity Mammals: large numbers of cetaceans occur offshore, including a probable breeding population of Megaptera novaeangliae (V). Reptiles: a few sea-turtles Chelonia mydas (E) nest on the beaches. Flora: three plant species with very restricted ranges (apparently endemic to Oman) occur, as does a rare lichen Simonyiella.
Acknowledgements Data-sheet compiled by Simon Albrecht; summary bird data supplied by Oman Bird Records Committee (per Jens Eriksen).
References Bailey (1966), Gallagher (1985).
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Recommended citation BirdLife International (2014) Important Bird Areas factsheet: Halaaniyaat Islands. Downloaded from http://www.birdlife.org on 26/07/2014
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