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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	winter (1997–2000)	800–10,500 birds	C3
Bean Goose Anser fabalis	LC	winter (1997–2000)	10,000–30,000 birds	C3
Greater White-fronted Goose Anser albifrons	LC	winter (1997–2000)	3,000–8,000 birds	C3
Common Goldeneye Bucephala clangula	LC	winter (1997–2000)	1,250 birds	C3
Ferruginous Duck Aythya nyroca	NT	breeding (1997–2000)	40–50 pairs	C1, C6
Eurasian Coot Fulica atra	LC	winter (1997–2000)	30,000 birds	C3
Eurasian Bittern Botaurus stellaris	LC	breeding (1997–2000)	20 pairs	C2
Common Little Bittern Ixobrychus minutus	LC	breeding (1997–2000)	75 pairs	C2, C6
Squacco Heron Ardeola ralloides	LC	breeding (1997–2000)	20–25 pairs	C2, C6
Purple Heron Ardea purpurea	LC	breeding (1997–2000)	40–50 pairs	C6
Great White Egret Ardea alba	LC	breeding (1997–2000)	250 pairs	C2, C6
Pygmy Cormorant Microcarbo pygmaeus	LC	breeding (1997–2000)	10 pairs	C1, C6
Whiskered Tern Chlidonias hybrida	LC	breeding (1997–2000)	300 pairs	C6
Black Tern Chlidonias niger	LC	breeding (1997–2000)	100–200 pairs	C6
Common Tern Sterna hirundo	LC	breeding (1997–2000)	250–300 pairs	C6
Western Marsh-harrier Circus aeruginosus	LC	breeding (1997–2000)	40 pairs	C6
Moustached Warbler Acrocephalus melanopogon	LC	breeding (1997–2000)	30 pairs	C6

Year	Protected Area	Designation (management category)	% coverage of IBA
1997	Balaton-felvidéki	Nemzeti Park (V)	100

Habitat	% of IBA	Habitat detail
Wetlands (inland)	50
Artificial/Terrestrial	45

Land use	% of IBA
water management	60
nature conservation and research	50
other	40
agriculture	20
forestry	10
fisheries/aquaculture	7
not utilised	5

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Lake Kis-Balaton (Hungary). Downloaded from https://datazone.birdlife.org/site/factsheet/lake-kis-balaton-iba-hungary on 27/12/2024.