Search for: [Subject and Keywords = bittern] OR [Subject and Keywords = bąk] OR [Subject and Keywords = czaplowate] OR [Subject and Keywords = Botaurus stellaris] OR [Subject and Keywords = Ardeidae] OR [Subject and Keywords = Pojezierze Łęczyńsko\-Włodawskie] OR [Title = Distributions, numbers and conservation of the bittern Botaurus stellaris in the Łęczyca\-Włodawa Lakeland \(E Poland\)] OR [Title = Rozmieszczenie, liczebność i ochrona bąka Botaurus stellaris na Pojezierzu Łęczyńsko\-Włodawskim] OR [Creator = Piskorski, Michał]