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Location Iran, Islamic Republic of, Hormozgan
Central coordinates 56o 48.00' East  27o 8.00' North
IBA criteria A4i, B1i, B2, B3
Area 11,800 ha
Altitude 0 - 50m
Year of IBA assessment 1994

Site description A 55 km stretch of coast along the Straits of Hormoz, c.10-70 km east of Bandar Abbas, incorporating three river deltas. The site includes extensive intertidal mudflats (over 1 km wide), significant stands of mangrove at the river mouths and along adjacent creeks, long sand beaches, low sandbars and sand spits, and two large shallow bays, Khor Tiab and Khor Kolahy, near the mouth of the Rud-i Minab in the east. The rivers flow only after erratic rainfall in the interior, usually in winter. The waters of the Rud-i-Shirin and Rud-i-Minab are fresh, but the Rud-i-Shur is somewhat brackish. Mangrove Avicennia marina occurs at the river mouths, and fringes the tidal creeks. The adjacent arid plain supports a sparse woodland of Acacia, Prosopis, Ziziphus and Tamarix with large areas of bare, sandy flats. Land ownership is public. There are a few small settlements, generally with date gardens. Fishing is important.

Key Biodiversity See box for key species. An extremely important wintering area for shorebirds and gulls, notably Haematopus ostralegus, Limosa lapponica, Numenius arquata and Larus cachinnans/L. argentatus. The site may also be important for breeding herons and egrets including Ardea goliath and Ardeola grayii. The adjacent plains and woodland have a typical Baluchi avifauna with several Indo-Malayan species at or near their western limit, notably Gyps bengalensis, Francolinus pondicerianus, Athene brama, Dendrocopos assimilis and Acridotheres tristis. Common winter visitors include Phylloscopus inornatus humei.

Non-bird biodiversity: None known to BirdLife International.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Goliath Heron Ardea goliath winter  1977  1 individuals  good  A4i, B1i, B2  Least Concern 
Great White Egret Ardea alba winter  1987-1992  250 individuals  good  B1i  Least Concern 
Haematopus ostralegus winter  1970-1977  3,500 individuals  good  A4i, B1i  Not Recognised 
Bar-tailed Godwit Limosa lapponica winter  1970-1977  5,000 individuals  good  A4i, B1i  Near Threatened 
Eurasian Curlew Numenius arquata winter  1970-1977  1,500 individuals  good  A4i, B1i  Near Threatened 
Larus cachinnans winter  1987-1992  3,000 individuals  poor  B1i  Not Recognised 
Sind Woodpecker Dendrocopos assimilis resident  1977  2 individuals  poor  B3  Least Concern 
Small Whitethroat Sylvia minula winter  1977  10 individuals  poor  B3  Least Concern 

IBA Monitoring

1994 medium not assessed not assessed
Good - based on reliable and complete / representative data

Agriculture and aquaculture livestock farming and ranching (includes forest grazing) - small-holder grazing, ranching or farming happening now small area/few individuals (<10%) slow but significant deterioration low
Biological resource use logging & wood harvesting - unintentional effects: subsistence/small scale happening now small area/few individuals (<10%) slow but significant deterioration low
Pollution industrial & military effluents - oil spills happening now some of area/population (10-49%) slow but significant deterioration medium

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Deltas of Rud-e-Shur, Rud-e-Shirin and Rud-e-Minab Wetlands of International Importance (Ramsar) 45,000 protected area contained by site 45,000  


IUCN habitat Habitat detail Extent (% of site)
Desert   major
Sea   major
Coastline   major
Forest   minor

Land use

Land-use Extent (% of site)
nature conservation and research 100%
rangeland/pastureland minor
forestry minor

Acknowledgements Data-sheet compiled by Dr D. A. Scott, reviewed by Dept of Environment.

References Carp (1980), Ramsar Convention Bureau (1993), Scott (1975b, 1976a,c), Summers et al. (1987).

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Rud-i-Shur, Rud-i-Shirin and Rud-i-Minab deltas. Downloaded from on 24/10/2016

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