|Central coordinates||17o 32.00' East 53o 50.00' North|
|IBA criteria||B1i, B2, B3|
|Altitude||119 - 207m|
|Year of IBA assessment||2000|
Ornithological information An important wintering site for swans Cygnus (all three European species), which also holds 10% of the national population of Pandion haliaetus on passage. A total of 107 species have been recorded breeding; breeding species of global conservation concern that do not meet IBA criteria: Haliaeetus albicilla (three pairs).
Site description The area is part of the great Tuchola `sandr' (outwash plain of glacial origin). The terrain is varied, with elevated plains, extensive hills, many hummocks, valleys and troughs, and is drained by the Brda river and its many tributaries (the largest being the Zbrzyca). Some of the rivers have steep gradients and strong flows. Of 60 lakes in this area, the largest is Charzykowskie lake (1,363 ha), and the deepest is Ostrowite lake (43 m deep). Many are flow-lakes, being part of the Brda river system, and most have low to moderate levels of nutrients. Forests are dominated by pine Pinus. On richer soils there are dry-ground forests of hornbeam Carpinus, birch Betula, beech Fagus and oak Quercus, and near watercourses and reservoirs there is riverside carr and forest of alder Alnus. There are fens, connected with rivers and lakes, as well as (in hollows) raised bogs and transitional mires.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Whooper Swan Cygnus cygnus||winter||1995||50-400 individuals||good||B1i, B3||Least Concern|
|Red Kite Milvus milvus||breeding||1991||15 breeding pairs||good||B3||Near Threatened|
|Eurasian Eagle-owl Bubo bubo||resident||1996||7-10 breeding pairs||good||B2||Least Concern|
|Protected area||Designation||Area (ha)||Relationship with IBA||Overlap with IBA (ha)|
|Bagno Stawek||Nature Reserve||41||unknown||41|
|Bagno Stawek||Nature Reserve||41||protected area contained by site||41|
|Jezioro Laska||Nature Reserve||70||protected area contained by site||70|
|Jezioro Laska NR (Bird Reserve)||Nature Reserve||70||unknown||70|
|Jezioro Maóe Lowne||Nature Reserve||38||unknown||38|
|Jezioro Maóe Lowne||Nature Reserve||38||protected area contained by site||38|
|Male Lowne||Nature Reserve||38||unknown||38|
|Nawionek||Nature Reserve||11||protected area contained by site||11|
|PN Bory Tucholskie||National Park||4,613||protected area contained by site||4,789|
|Zaborski Park Krajobrazowy||Landscape Park||34,026||protected area contained by site||31,279|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Forest||Alluvial and very wet forest; Broadleaved deciduous woodland; Mixed woodland; Native coniferous woodland||66%|
|Grassland||Humid grasslands; Mesophile grasslands||7%|
|Wetlands (inland)||Fens, transition mires and springs; Raised bogs; Rivers and streams; Standing freshwater; Water fringe vegetation||12%|
|Artificial landscapes (terrestrial)||Arable land; Highly improved re-seeded landscapes; Ruderal land||15%|
|Land-use||Extent (% of site)|
|nature conservation and research||12%|
Management considerations Forestry work close to, or in, buffer zones designated for nesting Haliaeetus albicilla, Bubo bubo and Ciconia nigra disturbs these particular species, as does tourism/recreation.
Protection status National High International None4,789 ha of IBA covered by National Park (Bory Tucholskie, 4,789 ha). 41 ha of IBA covered by Nature Reserve (Bagno Stawek, 41 ha). 70 ha of IBA covered by Nature Reserve (Jezioro Laska, 70 ha). 38 ha of IBA covered by Nature Reserve (Jezioro Ma³e £owne, 38 ha). 11 ha of IBA covered by Nature Reserve (Jezioro Nawionek, 11 ha). 31,279 ha of IBA covered by Landscape Park (Zaborski, 31,279 ha).
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Recommended citation BirdLife International (2013) Important Bird Areas factsheet: Middle part of Tuchola forest. Downloaded from http://www.birdlife.org on 21/05/2013
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