|Location||Saudi Arabia, Ash Sharqiyah|
|Central coordinates||50o 0.00' East 25o 31.80' North|
|IBA criteria||A4iii, B1i, B2|
|Year of IBA assessment||1994|
Site description A long, narrow, man-made river, the only large-scale freshwater habitat in the Eastern Province, running east-south-east from Hofuf and Abqaiq towards al-'Uqair. It is formed by run-off from al-Hasa oasis and sewage effluent from Hofuf, Abqaiq and numerous small towns, and frequently disappears under sand-dunes, to surface again a few kilometres further on. There are numerous pools of up to c.250 ha, often surrounded by large reedbeds. The rest of the area consists of sandy gravel plain and sand-dunes interspersed with sabkhahs and aeolian sand-fields.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Black Francolin Francolinus francolinus||resident||1993||rare [units unknown]||-||B2||Least Concern|
|Ferruginous Duck Aythya nyroca||breeding||1983||10 breeding pairs||poor||B2||Near Threatened|
|Great Bittern Botaurus stellaris||winter||1993||present [units unknown]||-||B2||Least Concern|
|Black-winged Stilt Himantopus himantopus||winter||1983||1,900 individuals||poor||B1i||Least Concern|
|A4iii Species group - waterbirds||winter||1993||20,000 individuals||medium||A4iii|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Artificial landscapes (aquatic)||major|
|Land-use||Extent (% of site)|
Other biodiversity None known to BirdLife International.
Acknowledgements Data-sheet compiled by P. Symens.
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Recommended citation BirdLife International (2013) Important Bird Areas factsheet: Al-Hasa lagoons. Downloaded from http://www.birdlife.org on 08/12/2013
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