The site was identified as important in 1994 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.Populations meeting IBA criteria ('trigger species'):
|Species||Current IUCN Red List Category||Season||Year(s)||Population estimate at site||IBA criteria met|
|White-headed Duck Oxyura leucocephala||EN||winter||1987-1992||230 individuals||A1, A4i, B1i, B2|
|Ruddy Shelduck Tadorna ferruginea||LC||winter||1987-1992||1,800 individuals||A4i, B1i|
|Common Crane Grus grus||LC||winter||1987-1992||3,246 individuals||A4i, B1i|
The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (1994).
|Habitat (IUCN level 1)||Habitat detail||Extent (% of site)|
|Land-use||Extent (% of site)|
BirdLife International (2023) Important Bird Area factsheet: Harm lake. Downloaded from http://datazone.birdlife.org/site/factsheet/harm-lake-iba-iran-islamic-republic-of on 30/09/2023.