Sites - Important Bird Areas (IBAs)

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.

Populations of IBA trigger species

Protected areas

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

Habitats

Land use

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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