Hiiumaa islets

IBA Criteria

Year of most recent IBA criteria assessment: 2000

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Whooper Swan Cygnus cygnus LC passage 1999 100-400 individuals B1i
Barnacle Goose Branta leucopsis LC passage 1999 1,700-4,400 individuals A4i, B1i
Common Goldeneye Bucephala clangula LC passage 1999 1,500-3,500 individuals B1i
Greater Scaup Aythya marila LC passage 1999 10,000-13,500 individuals A4i, B1i

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here

IBA Protection

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
West Estonian Archipelago UNESCO-MAB Biosphere Reserve 1,560,000 protected area overlaps with site 13,398
Hiiumaa laidude maastikukaitseala Maastikukaitseala (looduspark) 3,224 protected area contained by site 2,662
Hiiumaa Islets and Käina Bay Ramsar Site, Wetland of International Importance 17,700 protected area contains site 16,060


IUCN Habitat Habitat detail Extent (% of site)
Wetlands (inland) -
Sea Sea inlets and coastal features -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
agriculture -
fisheries/aquaculture -
nature conservation and research -
tourism/recreation -
For further information about the land use classification please click here.

Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Hiiumaa islets. Downloaded from on 20/01/2022.