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The site was identified as internationally important for bird conservation in 2002 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List	Season (year/s of estimate)	Size	IBA criteria
Greylag Goose Anser anser	LC	passage (2001)	100–11,000 birds	C3
Bean Goose Anser fabalis	LC	passage (2001)	4,000–16,000 birds	C3
Greater White-fronted Goose Anser albifrons	LC	passage (2001)	100–3,600 birds	C3
Red-crested Pochard Netta rufina	LC	passage (2001)	1,000 birds	C3
Common Teal Anas crecca	LC	passage (2001)	10,000 birds	C3
Eurasian Bittern Botaurus stellaris	LC	breeding (2001)	25–30 pairs	C2, C6
Common Little Bittern Ixobrychus minutus	LC	breeding (2001)	80–100 pairs	C2, C6
Western Marsh-harrier Circus aeruginosus	LC	breeding (2001)	40–50 pairs	C6
Moustached Warbler Acrocephalus melanopogon	LC	breeding (2001)	100 pairs	C6
Bluethroat Luscinia svecica	LC	breeding (2001)	10 pairs	C6

Year	Protected Area	Designation (management category)	% coverage of IBA
1979	Lake Fertö Biosphere Reserve	UNESCO-MAB Biosphere Reserve (UA)	100
1991	Fertő-Hansági	Nemzeti Park (II)	100

Habitat	% of IBA	Habitat detail
Wetlands (inland)	65	Standing brackish and salt water; Water fringe vegetation
Artificial/Terrestrial	30	Highly improved re-seeded landscapes; Arable land
Grassland	5	Humid grasslands; Mesophile grasslands

Land use	% of IBA
nature conservation and research	100
hunting	98
fisheries/aquaculture	65
water management	65
agriculture	15
other	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Lake Fertő (Hungary). Downloaded from https://datazone.birdlife.org/site/factsheet/lake-fertő-iba-hungary on 23/12/2024.