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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 IBA criteria.

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

Species	Red List	Season (year/s of estimate)	Size	IBA criteria
Corncrake Crex crex	LC	breeding (1994–2004)	20–30 breeding pairs	C1
Great Snipe Gallinago media	NT	breeding (1994–2004)	10–15 breeding pairs	C6

Year	Protected Area	Designation (management category)	% coverage of IBA
1997	Ziemeļvidzemes biosfēras rezervāts	Biosferas rezervats (V)	100
2004	Rūjas paliene	Dabas liegums (IV)	96
2004	Rujas paliene	Restricted Nature Territory (-)	100

Habitat	% of IBA	Habitat detail
Grassland	47	Mesophile grasslands
Forest	19	Mixed woodland; Broadleaved deciduous woodland
Shrubland	13	Scrub
Artificial/Terrestrial	12	Highly improved re-seeded landscapes
Wetlands (inland)	9	Standing freshwater; Fens, transition mires and springs

Land use	% of IBA
hunting	15
agriculture	7
nature conservation and research	major (>10)
tourism/recreation	minor (<10)

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Recommended citation
BirdLife International (2025) Important Bird Area factsheet: Ruja flood-plain (Latvia). Downloaded from https://datazone.birdlife.org/site/factsheet/ruja-flood-plain-iba-latvia on 14/01/2025.