Mouth of Svir river

IBA Justification

The site was identified as important in 2007 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
Whooper Swan Cygnus cygnus LC passage 1996 500-1,100 individuals A4i, B1i
Corncrake Crex crex LC breeding 1996 70-100 breeding pairs A1
Whimbrel Numenius phaeopus LC breeding 1996 200-250 breeding pairs B3

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2007).

IBA Protection

Protected area (PA) PA designation PA area (ha) Relationship of PA with IBA Overlap of PA with IBA (ha)
Svir Delta Ramsar Site, Wetland of International Importance 60,500 protected area overlaps with site 60,500
Olonetsky Zakaznik (Federal) 27,000 protected area is adjacent to site 0
Nizhne-Svirsky Zapovednik 41,615 protected area overlaps with site 41,600


Habitat (IUCN level 1) Habitat detail Extent (% of site)
Forest Native coniferous woodland, Alluvial and very wet forest -
Wetlands (inland) Raised bogs, Fens, transition mires and springs, Standing freshwater -
Artificial/Terrestrial Highly improved re-seeded landscapes, Arable land -
For more information about the IUCN Habitat classification, please click here.

Land use

Land-use Extent (% of site)
agriculture -
fisheries/aquaculture -
forestry -
hunting -
nature conservation and research -

Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Mouth of Svir river. Downloaded from on 30/09/2023.