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The site was identified as internationally important for bird conservation in 2004 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
Whooper Swan Cygnus cygnus	LC	passage (1996–1999)	800 birds	A4i, B1i
Tundra Swan Cygnus columbianus	LC	passage (1996–1999)	700 birds	A4i, B1i
Greater White-fronted Goose Anser albifrons	LC	passage (-)	6,000–9,000 birds	C3
Common Goldeneye Bucephala clangula	LC	passage (-)	2,000–3,500 birds	A4i, B1i, C3
Smew Mergellus albellus	LC	winter (-)	400–1,000 birds	A4i, B1i, C2
Goosander Mergus merganser	LC	passage (1990–1999)	1,800–4,500 birds	A4i, B1i
Goosander Mergus merganser	LC	winter (-)	10,000–15,000 birds	A4i, B1i, C3
Common Pochard Aythya ferina	VU	passage (-)	3,500–4,500 birds	A4i, B1i, C3
Tufted Duck Aythya fuligula	LC	passage (-)	4,000–10,000 birds	C3
Northern Pintail Anas acuta	LC	passage (1996–1999)	1,900 birds	A4i, B1i
Great Cormorant Phalacrocorax carbo	LC	passage (1996–1999)	2,800 birds	A4i, B1i
Little Gull Hydrocoloeus minutus	LC	passage (-)	1,500–2,000 birds	A4i, B1i, C2
White-tailed Sea-eagle Haliaeetus albicilla	LC	winter (-)	20–30 birds	A1, C1
A4iii Species group - waterbirds	n/a	winter (1990–1999)	min 20,000 birds	A4iii

Year	Protected Area	Designation (management category)	% coverage of IBA
-	The northern part of the Curonian Lagoon	Baltic Sea Protected Area (Helcom) (UA)	9
1991	Kursiu nerijos nacionalinis parkas	Valstybinis parkas (II)	3
1998	Luzijos botaninis draustinis	Gamtinis draustinis (IV)	<1
2009	Kursiu marios Biosphere Polygon	Biosferos poligonas (VI)	97

Habitat	% of IBA	Habitat detail
Marine Coastal/Supratidal	100

Land use	% of IBA
fisheries/aquaculture	major (>10)
urban/industrial/transport	major (>10)
tourism/recreation	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: The northern part of the Curonian Lagoon (Lithuania). Downloaded from https://datazone.birdlife.org/site/factsheet/the-northern-part-of-the-curonian-lagoon-iba-lithuania on 23/12/2024.