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Among 544 species of helminths recorded in birds on the territory of Poland, probably some (17 species of Digenea, 21 Cestoda, 13 Nematoda and 5 Acanthocephala) do not belong to the native fauna. These are helminths obtained in mature stage from birds shortly after their arrival from wintering grounds, or from foreign populations wintering with us, or being in the course of spring or autumn migration...
During our investigations on the parasitofauna of birds from Lower Silesia, the trematode Leyogonimus postgonoporus was encountered twice: from Turdus merula and Scolopax rusticola. The morphological details and measurements of this rare trematode are described and compared with the literature data. L. postgonoporus is a new species for the parasitofauna of Poland and Scolopax rusticola appears to...
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