PL045
Knyszyn Forest


IBA Criteria

Year of most recent IBA criteria assessment: 2010

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Hazel Grouse Bonasa bonasia LC breeding 1989-1993 3,500-4,500 breeding pairs C6
Black Grouse Lyrurus tetrix LC breeding 1989-2002 20-50 males C6
Whooper Swan Cygnus cygnus LC breeding 1989-1995 2 breeding pairs C6
Corncrake Crex crex LC breeding 2004-2009 250-350 males C1, C6
Black Stork Ciconia nigra LC breeding 1989-1993 15-16 breeding pairs C6
Eurasian Pygmy-owl Glaucidium passerinum LC breeding 2004-2009 20-40 breeding pairs C6
Boreal Owl Aegolius funereus LC breeding 2009 120 breeding pairs C6
European Honey-buzzard Pernis apivorus LC breeding 1989-1999 60-75 breeding pairs C6
Lesser Spotted Eagle Clanga pomarina LC breeding 1989-2003 58-59 breeding pairs C6
Black Woodpecker Dryocopus martius LC breeding 1989-1993 400-600 breeding pairs C6
Three-toed Woodpecker Picoides tridactylus LC breeding 2005-2008 35-50 breeding pairs C6
Red-breasted Flycatcher Ficedula parva LC breeding 1989-1993 500-1,500 breeding pairs C6

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)
2010 high very unfavourable medium
Was the whole site covered? Yes State assessed by Habitat
Accuracy of information medium

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Agricultural expansion and intensification marine and freshwater aquaculture - subsistence/artisinal aquaculture happening now some of area/population (10-49%) slow but significant deterioration medium
Climate change and severe weather habitat shifting and alteration past (and unlikely to return) and no longer limiting whole area/population (>90%) moderate to rapid deterioration low
Invasive and other problematic species and genes invasive non-native/alien species/diseases - unspecified species happening now some of area/population (10-49%) slow but significant deterioration medium
Natural system modifications dams & water management/use - dams (size unknown) likely in short term (within 4 years) majority/most of area/population (50-90%) very rapid to severe deterioration high
Natural system modifications other ecosystem modifications happening now some of area/population (10-49%) slow but significant deterioration medium
No known threats no known threats happening now small area/few individuals (<10%) no or imperceptible deterioration low
Pollution agricultural & forestry effluents - type unknown/unrecorded past (and unlikely to return) and no longer limiting some of area/population (10-49%) slow but significant deterioration low
Residential and commercial development tourism and recreation areas happening now some of area/population (10-49%) slow but significant deterioration medium
Transportation and service corridors roads and railroads likely in short term (within 4 years) some of area/population (10-49%) slow but significant deterioration medium

Condition of habitat (state)
Habitat Habitat Detail Reference Area (ha) Actual Area (ha) % of habitat remaining % of carrying capacity (overall) Result
Forest Mixed woodland 0 0 poor (40-69%) poor (40-69%) very unfavourable

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Most of site (50-90%) covered (including the most critical parts for important bird species) A management plan exists but it is out of date or not comprehensive Substantive conservation measures are being implemented but these are not comprehensive and are limited by resources and capacity medium
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)
Wzgórza Sokólskie Obszar Chronionego Krajobrazu 38,397 protected area overlaps with site 0
Woronicza Rezerwat Przyrody 140 protected area contained by site 134
Wielki Las Rezerwat Przyrody 32 protected area contained by site 129
Wielki Las Rezerwat Przyrody 129 protected area overlaps with site 0
Taboły Rezerwat Przyrody 304 protected area contained by site 0
Surażkowo Rezerwat Przyrody 137 protected area contained by site 134
Starodrzew Szyndzielski Rezerwat Przyrody 80 protected area contained by site 80
Stare Biele Rezerwat Przyrody 257 protected area contained by site 256
Stara Dêbina Nature Reserve 34 protected area contained by site 34
Stara Dębina Rezerwat Przyrody 33 protected area overlaps with site 0
Puszczy Knyszyñskiej im. Prof. Witolda Sóawiñskieg Landscape Park 73,094 protected area contained by site 73,094
Puszcza Knyszyńska Special Protection Area (Birds Directive) 139,590 protected area overlaps with site 107,584
Park Krajobrazowy Puszczy Knyszyńskiej im. profesora Witolda Sławińskiego Park Krajobrazowy 73,190 protected area overlaps with site 0
Ostoja Knyszyńska Site of Community Importance (Habitats Directive) 136,084 protected area overlaps with site 117,500
Nietupa Rezerwat Przyrody 274 protected area overlaps with site 0
Międzyrzecze Rezerwat Przyrody 252 protected area contained by site 250
Las Cieliczański Rezerwat Przyrody 372 protected area contained by site 371
Kulikówka Rezerwat Przyrody 10 protected area contained by site 11
Krzemienne Góry Rezerwat Przyrody 79 protected area contained by site 74
Krzemianka Rezerwat Przyrody 230 protected area contained by site 231
Krasne Rezerwat Przyrody 85 protected area contained by site 85
Kozłowy Ług Rezerwat Przyrody 140 protected area contained by site 0
Karczmisko Rezerwat Przyrody 20 protected area contained by site 17
Jesionowe Góry Rezerwat Przyrody 377 protected area contained by site 377
Jaówka Nature Reserve 227 protected area contained by site 227
Jałówka Rezerwat Przyrody 276 protected area contained by site 0
Góra Pieszczana Rezerwat Przyrody 221 protected area contained by site 0
Gola Rezerwat Przyrody 12 protected area contained by site 220
Chomontowszczyzna Rezerwat Przyrody 235 protected area contained by site 0
Budzisk Rezerwat Przyrody 341 protected area contained by site 14
Bahno w Borkach Rezerwat Przyrody 291 protected area contained by site 286

Habitats

IUCN Habitat Habitat detail Extent (% of site)
Forest Native coniferous woodland, Mixed woodland, Alluvial and very wet forest -
Grassland Humid grasslands, Mesophile grasslands -
Other -
Artificial/Terrestrial Arable land, Ruderal land -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
agriculture -
forestry -
hunting -
For further information about the land use classification please click here.


Recommended citation
BirdLife International (2021) Important Bird Areas factsheet: Knyszyn Forest. Downloaded from http://www.birdlife.org on 15/04/2021.