IBA Criteria

Year of most recent IBA criteria assessment: 2005

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Garganey Spatula querquedula LC breeding 1998 400-600 breeding pairs B2
Corncrake Crex crex LC breeding 1998 200-300 breeding pairs A1
Spotted Crake Porzana porzana LC breeding 1998 250-400 breeding pairs B3
Great Snipe Gallinago media NT breeding 2004 20 breeding pairs A1
Little Gull Hydrocoloeus minutus LC breeding 1998 20 breeding pairs B2
Black Tern Chlidonias niger LC breeding 1998 80-200 breeding pairs B2
Greater Spotted Eagle Clanga clanga VU breeding 2003 2-3 breeding pairs A1

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here

IBA Monitoring

Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2018 medium not assessed negligible
Was the whole site covered? Yes State assessed by unset
Accuracy of information medium

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Natural system modifications other ecosystem modifications happening now some of area/population (10-49%) slow but significant deterioration medium

Condition of key/trigger populations (state)
Scientific Common TargetPop ActualPop Units Remaining Result
Spatula querquedula Garganey 200 220 breeding pairs 100 favourable
Gallinago media Great Snipe 20 15 males 75 near favourable
Chlidonias niger Black Tern 50 70 breeding pairs 100 favourable
Clanga clanga Greater Spotted Eagle 2 2 breeding pairs 100 favourable

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Unknown No management planning has taken place Unknown negligible
For more information about IBA monitoring please click here

IBA Protection

Protection status:

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Berezinskiy State Nature Reserve 81,023 protected area is adjacent to site 0


IUCN Habitat Habitat detail Extent (% of site)
Forest Alluvial and very wet forest, Mixed woodland, Native coniferous woodland -
Shrubland Scrub -
Grassland Humid grasslands -
Wetlands (inland) Fens, transition mires and springs, Rivers and streams, Standing freshwater -
Artificial/Terrestrial -
For further information about the habitat classification please click here.

Recommended citation
BirdLife International (2021) Important Bird Areas factsheet: Biarezina-Hajna. Downloaded from on 24/01/2021.