Current view: Text account
Site description (2000 baseline):
Site location and context
The site consists of a large basin covered by a thick layer of peat. The basin drains into the upper course of the Supraœl river, which traverses the northern part of the site. Most of the area has been drained by man, but in many places there are still mires. The central part of the basin is occupied by fens (mainly sedge-beds, occasionally reedbeds
Phragmites), while the southern part is raised bog, with marshy forest and a variety of bog mosses. There are two small lakes, Gorbacz and Wiejki. The marshy forest is dominated by birch
Betula and pine
Pinus, with alder
Alnus scrub also common.
A total of 105 species have been recorded breeding. Species of global conservation concern that do not meet IBA criteria:
Haliaeetus albicilla (one bird on passage),
Crex crex (20-40 breeding birds).
Pressure/threats to key biodiversity
Tourism/recreation causes disturbance to birds.
National Low
International None114 ha of IBA covered by Nature Reserve (Gorbacz [Peatbog Reserve], 114 ha).
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Gródek-Michalowo basin (Poland). Downloaded from
https://datazone.birdlife.org/site/factsheet/gródek-michalowo-basin-iba-poland on 23/11/2024.
