|Central coordinates||21o 45.00' East 52o 40.00' North|
|Altitude||100 - 150m|
|Year of IBA assessment||2010|
Site description One of the largest remaining complexes of natural forest in the Mazowsze region, situated between the Bug and the Narew rivers, and drained by the Brok, Struga, Truche³ka, Turka and Wymakacz rivers. Stands are 40-80 years old, in more or less dense tracts, interspersed with meadows, ponds and willow Salix scrub. Seventy percent of the forest is a monoculture of pine Pinus or is mixed forest of oak Quercus and Pinus, 10% is broadleaved dominated by hornbeam Carpinus, and the rest is broadleaved riverine forest. Two fish-pond complexes and a dozen or so villages are located in the middle of the site.
Key Biodiversity A total of 193 species have been recorded. Breeding species of global conservation concern that do not meet IBA criteria: Gallinago media.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|European Nightjar Caprimulgus europaeus||breeding||2009||150 breeding pairs||poor||C6||Least Concern|
|Black Woodpecker Dryocopus martius||breeding||2009||300-350 breeding pairs||poor||C6||Least Concern|
|Wood Lark Lullula arborea||breeding||2009||800 breeding pairs||medium||C6||Least Concern|
|Barred Warbler Sylvia nisoria||breeding||2009||200-250 breeding pairs||medium||C6||Least Concern|
|Tawny Pipit Anthus campestris||breeding||2009||250-300 breeding pairs||medium||C6||Least Concern|
|Protected area||Designation||Area (ha)||Relationship with IBA||Overlap with IBA (ha)|
|Bartnia||Nature Reserve||15||protected area contained by site||15|
|Dolina Dolnego Bugu - PLB140001||Birds Directive||74,310||protected area is adjacent to site||0|
|Dolina Dolnej Narwi - PLB140014||Birds Directive||26,528||protected area is adjacent to site||0|
|Ostoja Nadbużanska - PLH140011||Habitats Directive||46,037||protected area is adjacent to site||0|
|Popóawy||Nature Reserve||6||protected area contained by site||6|
|Puszcza Biata - PLB140007||Birds Directive||83,780||protected area overlaps with site||69,777|
|Wielgolas||Nature Reserve||7||protected area contained by site||7|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Forest||Alluvial and very wet forest; Mixed woodland; Native coniferous woodland||71%|
|Wetlands (inland)||Rivers and streams; Standing freshwater; Water fringe vegetation||2%|
|Artificial - terrestrial||Arable land; Ruderal land||21%|
|Land-use||Extent (% of site)|
Protection status National Low International None15 ha of IBA covered by Nature Reserve (Bartnia [Bird Reserve], 15 ha). 6 ha of IBA covered by Nature Reserve (Pop³awy, 6 ha). 7 ha of IBA covered by Nature Reserve (Wielgolas, 7 ha).
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Recommended citation BirdLife International (2015) Important Bird Areas factsheet: Biala Forest. Downloaded from http://www.birdlife.org on 28/03/2015
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