IBA Criteria met: C1, C2, C6 (2010)
For more information about IBA criteria please click here
Area: 73,380 ha
|Most recent IBA monitoring assessment|
|Year of assessment||Threat score (pressure)||Condition score (state)||Action score (response)|
|2009||very high||not assessed||low|
|For more information about IBA monitoring please click here|
The site contains the channel and valley of the Bug river between the Krzna river tributary and the Zegrzyñski reservoir (260 km), with adjacent extensive dry pastures. The whole area floods in spring. There are some swamps and mires at the mouths of tributaries entering the Bug. The river channel is generally natural, not too modified by man, so there are numerous bare sand islands and others overgrown with ruderal herbs or willow Salix scrub. Elsewhere there are also local remnants of willow or poplar Populus scrub. On the lowest river terrace there are numerous oxbow lakes, differing in size, depth and extent of aquatic vegetation (Potamogeton, Lemna).
The site supports more breeding Charadrius hiaticula than any other inland site in Europe.
BirdLife International (2023) Important Bird Areas factsheet: Lower Bug river valley. Downloaded from http://www.birdlife.org on 20/03/2023.