28 species of parasites (8 coccidia, 6 trematodes, 1 cestode, 6 nematodes, 1 tick, 6 mallophages) were found at the Common Crane. After presenting the interconnection of parasites with different carriers as vectors, intermediate and several final hosts in the biocoenosis of Common Cranes, the results of parasitological examination of 421 samples of cranes resulted in varying parasitization at different seasons and flyways. Further studies are needed to interprete these facts correctly. Changes of presented localities of diverted feedings and their parasitological and bacteriological control at resting places may avoid concentration of pathogens in soil, intermediate hosts and carriers.