Rud-i Jowin and Rud-i Kalshur

Country/territory: Iran, Islamic Republic of

IBA Criteria met: A1, B2 (1994)
For more information about IBA criteria please click here

Area: 250,000 ha

Site description
A vast area of cultivated upland plains and gently undulating hills, c.90 km from east to west and 30 km north to south, including the broad valleys of the Rud-i Jowin and Rud-i Kalshur rivers. The rivers flood in winter and spring and are reduced to a series of stagnant brackish pools by late summer. There are some seasonally flooded brackish marshes. Other habitats include cultivated land (mainly cereals), salt-tolerant vegetation in depressions on the valley floors, and Artemisia steppe on the rolling hills. There is some livestock grazing.

Key biodiversity
See box for key species. A wintering area for Otis tarda in the 1970s, with birds present from November until late February; up to 13 have been recorded by Department of the Environment personnel, but local farmers have reported flocks of up to 70. The site is also a wintering area for ducks, mainly Anas platyrhynchos and A. crecca.

Non-bird biodiversity: None known to BirdLife International.

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

Recommended citation
BirdLife International (2023) Important Bird Areas factsheet: Rud-i Jowin and Rud-i Kalshur. Downloaded from on 09/02/2023.