• Summary
• Text account
• Data table and detailed info
• Map
• Reference and further resources

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	breeding (1999)	4–5 pairs	C6
Greater White-fronted Goose Anser albifrons	LC	passage (1999)	6,100 birds	B1i, C3
Corncrake Crex crex	LC	breeding (1999)	35–40 males	A1, C1
Spotted Crake Porzana porzana	LC	breeding (1999)	15–25 males	C6
Ruff Calidris pugnax	LC	breeding (1999)	5–10 pairs	C6
Little Gull Hydrocoloeus minutus	LC	breeding (1999)	4 pairs	B2

Year	Protected Area	Designation (management category)	% coverage of IBA
2004	Birvetos biosferos poligonas	Biosferos poligonas (VI)	93

Habitat	% of IBA	Habitat detail
Wetlands (inland)	57	Rivers and streams; Standing freshwater
Grassland	32
Artificial/Terrestrial	11	Arable land; Other urban and industrial areas; Perennial crops, orchards and groves; Ruderal land

Land use	% of IBA
fisheries/aquaculture	50
rangeland/pastureland	32
agriculture	8
urban/industrial/transport	3
hunting	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Birveta Fish-farm including segments of Dysna River and Birveta River valleys (Lithuania). Downloaded from https://datazone.birdlife.org/site/factsheet/birveta-fish-farm-including-segments-of-dysna-river-and-birveta-river-valleys-iba-lithuania on 23/12/2024.