|Central coordinates||21o 38.00' East 53o 49.00' North|
|Year of IBA assessment||2010|
Ornithological information 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).
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.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Little Crake Porzana parva||breeding||2005-2008||30-40 males only||good||C6||Least Concern|
|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|
|Jezioro Tuknajno - PLB280003||Birds Directive||1,380||protected area overlaps with site||1,082|
|Luknajno||Nature Reserve||710||protected area contained by site||710|
|Puszcza Piska - PLB280008||Birds Directive||172,802||protected area is adjacent to site||0|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Forest||Alluvial and very wet forest||1%|
|Artificial landscapes (terrestrial)||8%|
|Grassland||Humid grasslands; Mesophile grasslands||32%|
|Wetlands (inland)||Fens, transition mires and springs; Standing freshwater; Water fringe vegetation||54%|
|Land-use||Extent (% of site)|
|nature conservation and research||90%|
Management considerations Water overflow from niardwy lake threatens the shallow end of this lake with nutrient pollution, following agricultural run-off in the surrounding area.
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 (2013) Important Bird Areas factsheet: Luknajno lake. Downloaded from http://www.birdlife.org on 23/05/2013
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