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Location Poland, zachodnio-pomorskie
Central coordinates 14o 52.00' East  53o 16.00' North
IBA criteria C1, C2, C3, C4
Area 16,820 ha
Year of IBA assessment 2010

Ogólnopolskie Towarzystwo Ochrony Ptaków

Site description A large lake with a moderate level of nutrients, bordered to the south and west by extensive chalk fens and meadows, and to the east by adjoining alder Alnus forest. The P³onia river goes through the lake and flows into D¹bie lake. The lake is a drinking water reservoir for the city of Szczecin and also supports a fishery.

Key Biodiversity Up to 12,000-14,000 Anser fabalis and A. albifrons stage here in autumn, with up to 1,500 such birds in winter. Breeding species of global conservation concern that do not meet IBA criteria: Haliaeetus albicilla (one pair feeds in the area, nesting nearby), Crex crex (one pair), Acrocephalus paludicola (nine singing males).

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Bean Goose Anser fabalis winter  2004-2009  25,500 individuals  good  C3  Least Concern 
Bean Goose Anser fabalis passage  2004-2009  18,847 individuals  good  C3  Least Concern 
Greater White-fronted Goose Anser albifrons passage  2004-2009  15,575 individuals  good  C3  Least Concern 
Great Crested Grebe Podiceps cristatus passage  2004-2009  10,300 individuals  good  C3  Least Concern 
Common Crane Grus grus passage  2001-2006  5,000 individuals  good  C2  Least Concern 
Eurasian Curlew Numenius arquata breeding  2004-2009  2-10 breeding pairs  good  C1  Near Threatened 
Aquatic Warbler Acrocephalus paludicola breeding  2005  14 males only  good  C1  Vulnerable 
A4iii Species group - waterbirds passage  2004-2009  70,000 individuals  good  C4   
A4iii Species group - waterbirds winter  2004-2009  44,000 individuals  good  C4   


IUCN habitat Habitat detail Extent (% of site)
Grassland Humid grasslands  44%
Wetlands (inland) Fens, transition mires and springs; Rivers and streams; Standing freshwater  28%
Forest   4%
Artificial - terrestrial   23%
Other   1%

Land use

Land-use Extent (% of site)
agriculture 30%
fisheries/aquaculture 20%
water management 50%
hunting -

Protection status National None International None

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Miedwie site. Downloaded from on 28/10/2016

To provide new information to update this factsheet or to correct any errors, please email BirdLife