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The site was identified as important 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 List1	Season	Year(s)	Size	IBA criteria
Mute Swan Cygnus olor	LC	winter	1994-2004	2,120-4,650 individuals	C3
Corncrake Crex crex	LC	breeding	1994-2004	20-50 breeding pairs	C1
Eurasian Bittern Botaurus stellaris	LC	breeding	1994-2004	15-30 breeding pairs	C6
Common Little Bittern Ixobrychus minutus	LC	breeding	1994-2004	1-5 breeding pairs	C6
Ruff Calidris pugnax	LC	breeding	1994-2004	5-25 breeding pairs	C6
Black Tern Chlidonias niger	LC	breeding	1994-2004	150-270 breeding pairs	C2, C6
Common Tern Sterna hirundo	LC	breeding	1994-2004	100-150 breeding pairs	C6
Western Marsh-harrier Circus aeruginosus	LC	breeding	1994-2004	20-40 breeding pairs	C6
Montagu's Harrier Circus pygargus	LC	breeding	1994-2004	5-10 breeding pairs	C6
Aquatic Warbler Acrocephalus paludicola	VU	breeding	1994-2004	2-5 breeding pairs	C6
A4iii Species group - waterbirds	n/a	passage	-	20,000 individuals	C4

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2004) may differ.

Year	Protected Area	Designation	% overlap with IBA
1977	Liepājas ezers	Dabas liegums	93
2002	Liepajas ezers	Site of Community Importance (Habitats Directive)	95
2004	Liepajas ezers	Special Protection Area (Birds Directive)	94

Habitat1	Habitat detail	% of IBA
Marine Coastal/Supratidal		73
Grassland	Mesophile grasslands	23
Shrubland	Scrub	2
Artificial/Terrestrial	Arable land, Other urban and industrial areas, Urban parks and gardens, Highly improved re-seeded landscapes	1
Forest	Broadleaved deciduous woodland	1

1. IUCN Habitat classification.

Land use	% of IBA
agriculture	-
fisheries/aquaculture	-
hunting	-
tourism/recreation	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Liepaja lake (Latvia). Downloaded from https://datazone.birdlife.org/site/factsheet/liepaja-lake-iba-latvia on 23/11/2024.