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Location Iran, Islamic Republic of, Golestan
Central coordinates 54o 45.00' East  37o 12.00' North
IBA criteria A4i, B1i
Area 500 ha
Altitude 10 m
Year of IBA assessment 1994

Site description A small irrigation storage reservoir on the Gorgan river, c.50 km north-north-east of Gorgan and 35 km west of Gonbad-e Qaboos, in a region of steppe and arable land. The water level fluctuates widely, and extensive mudflats can be exposed, but in most places the banks shelve steeply and there is little emergent vegetation.

Key Biodiversity See box for key species. A wintering area for ducks and grebes, notably Netta rufina (up to 340 birds) and Mergellus albellus, and a staging area for shorebirds. Sterna albifrons breeds.

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
Ferruginous Duck Aythya nyroca winter  1970-1977  15 individuals  good  B1i  Near Threatened 
Smew Mergellus albellus winter  1970-1977  340 individuals  good  A4i, B1i  Least Concern 
Pied Avocet Recurvirostra avosetta winter  1987-1992  430 individuals  good  A4i, B1i  Least Concern 
Charadrius alexandrinus passage  1977  350 individuals  good  B1i  Not Recognised 


IUCN habitat Habitat detail Extent (% of site)
Artificial - aquatic   100%

Land use

Land-use Extent (% of site)
water management 100%

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

References Scott (1976a).

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Voshmigir dam. Downloaded from on 24/10/2016

To provide new information to update this factsheet or to correct any errors, please email BirdLife