Trematodes of herons (Aves: Ciconiiformes) in the Czech Republic

A survey of 29 species of trematodes found in the Czech Republic in 530 herons of 8 species: Ardea cinerea 436 species examined (21 species of digeneas determined), A. purpurea 2 (4), Egretta alba 34 (7), E. garzetta 2 (3), Nycticorax nycticorax 28 (2), Ixobrychus minutus 19 (0), Botaurus stellaris 8 (5), Ardeola ralloides 1 (3) is presented. The species recorded for the first time in the Central Europe — Clinostomum heluans, Nephrostomum ramosum and Pygorchis affixus which has been brought from the wintering grounds in Africa, Echinochasmus militaris and Saakotrema metatestis brought by juvenile birds from breeding ground in the South Europe. Ophiosoma patagiatum and Posthodiplostomum brevicaudatum found for the first time in the Czech Republic.