The site was identified as important in 2016 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|
|Lesser Adjutant Leptoptilos javanicus||VU||non-breeding||2015||present||A1|
|Indian Skimmer Rynchops albicollis||EN||non-breeding||2015||present||A1|
|Black-bellied Tern Sterna acuticauda||EN||resident||2015||present||A1|
|Indian Spotted Eagle Clanga hastata||VU||resident||2015||present||A1|
|Greater Spotted Eagle Clanga clanga||VU||winter||2015||present||A1|
|Pallas's Fish-eagle Haliaeetus leucoryphus||EN||non-breeding||2015||present||A1|
|A4iii Species group - waterbirds||n/a||non-breeding||2009-2013||47,348-79,344 individuals||A4iii|
The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2016).
|Protected area (PA)||PA designation||PA area (ha)||Relationship of PA with IBA||Overlap of PA with IBA (ha)|
|Debrigarh||Sanctuary||34,691||protected area overlaps with site||0|
BirdLife International (2023) Important Bird Area factsheet: Heerakund Reservoir and Debrigarh Wildlife Sanctuary. Downloaded from http://datazone.birdlife.org/site/factsheet/heerakund-reservoir-and-debrigarh-wildlife-sanctuary-iba-india on 04/12/2023.