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Location Poland, warminsko-mazurskie
Central coordinates 21o 38.00' East  53o 49.00' North
IBA criteria C6
Area 1,252 ha
Altitude 100 m
Year of IBA assessment 2010

Ogólnopolskie Towarzystwo Ochrony Ptaków

Site description A very shallow (up to 3 m deep) nutrient-rich lake, with adjoining sedge-beds, transitional mires, alder Alnus woodland and willow Salix scrub. The lake shores are covered by beds of bulrush Scirpus, reed Phragmites and reed-mace Typha. Three-quarters of the lake bottom is covered by stonewort Chara and pondweed Potamogeton. The lake and a surrounding 100-m-wide belt are protected, but the area beyond is cultivated.

Key Biodiversity Large concentrations of waterbirds occur, regularly exceeding 20,000 individuals, mainly swans, ducks, Fulica atra, and gulls Larus. Species of global conservation concern that do not meet IBA criteria: Haliaeetus albicilla (1-2 non-breeding birds feed in the IBA, nesting nearby), Crex crex (4-6 pairs).

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Little Crake Zapornia parva breeding  2005-2008  30-40 males only  good  C6  Least Concern 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Jezioro Luknajno Wetlands of International Importance (Ramsar) 710 protected area contained by site 710  
Luknajno Nature Reserve 710 protected area contained by site 710  


IUCN habitat Habitat detail Extent (% of site)
Forest Alluvial and very wet forest  1%
Artificial - terrestrial   8%
Grassland Humid grasslands; Mesophile grasslands  32%
Wetlands (inland) Fens, transition mires and springs; Standing freshwater; Water fringe vegetation  54%
Other   5%

Land use

Land-use Extent (% of site)
nature conservation and research 90%
fisheries/aquaculture 10%

Protection status National High International High710 ha of IBA covered by Nature Reserve (Jezioro £uknajno, 710 ha). 710 ha of IBA covered by Ramsar Site (Jezioro £uknajno, 710 ha).

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Luknajno lake. Downloaded from on 26/10/2016

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