Lake Fertő

IBA Criteria

Year of most recent IBA criteria assessment: 2002

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Greylag Goose Anser anser LC passage 2001 100-11,000 individuals C3
Bean Goose Anser fabalis LC passage 2001 4,000-16,000 individuals C3
Greater White-fronted Goose Anser albifrons LC passage 2001 100-3,600 individuals C3
Red-crested Pochard Netta rufina LC passage 2001 1,000 individuals C3
Anas crecca NR passage 2001 10,000 individuals C3
Eurasian Bittern Botaurus stellaris LC breeding 2001 25-30 breeding pairs C2, C6
Common Little Bittern Ixobrychus minutus LC breeding 2001 80-100 breeding pairs C2, C6
Western Marsh-harrier Circus aeruginosus LC breeding 2001 40-50 breeding pairs C6
Moustached Warbler Acrocephalus melanopogon LC breeding 2001 100 breeding pairs C6
Bluethroat Cyanecula svecica LC breeding 2001 10 breeding pairs C6

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

Protection status:

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Lake Fertö Biosphere Reserve UNESCO-MAB Biosphere Reserve 12,542 protected area contains site 8,500
Lake Fertö Ramsar Site, Wetland of International Importance 8,432 is identical to site 8,432
Fertő-Hansági Nemzeti Park 23,744 protected area contains site 12,542
Fertő tó Site of Community Importance (Habitats Directive) 11,299 protected area contains site 8,500
Fertő tó Special Protection Area (Birds Directive) 8,697 protected area contains site 8,500


IUCN Habitat Habitat detail Extent (% of site)
Grassland Humid grasslands, Mesophile grasslands -
Wetlands (inland) Standing brackish and salt water, Water fringe vegetation -
Artificial/Terrestrial Highly improved re-seeded landscapes, Arable land -
For further information about the habitat classification please click here.

Land use

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

Recommended citation
BirdLife International (2021) Important Bird Areas factsheet: Lake Fertő. Downloaded from on 02/03/2021.