The helminth fauna of wild birds in the central and eastern Stara Planina mountains. II. Trematoda.
The 16 trematode species found in 8.81% of 1,124 wild birds of 93 species in the Stara Planina mountains, Bulgaria, are listed. Luscinia megarhynchos was recorded as a new host for Brachylecithoides mosquense; Aquila pomarina for Platynosomum semifuscum; Dryobates medius for Concinnum ellipticum and Dryocopus martius for Leucochloridium macrostoma. B. mosquense, C. ellipticum, P. semifuscum, Brachylaima mesostoma (in Turdus merula) and Echinostoma chloropodis in Gallinula chloropus were new geographic records.