The paper describes findings of three species of nematodes of the genus Oxyspirura parasites of birds in Czechoslovakia: O. (S.) petrowi (Skrjabin, 1929) from Lanius collurio L., O. (S.) rysavyi Baruŝ, 1963 from Oriolus oriolus oriolus and O. (O.) chabaudi n.sp. from Motacilla alba alba L.