Анотація:
In different regions of the Ukraine 914 Passeriformes belonging to 86 species were investigated for infestation with Mallophaga. Extensivity of infestation amounted to 58.2%. The highest extensivity is registered for the families Sturnidae, Corvidae, Ploceidae, Hirundinidae and Laniidae. Infestation of some species with the limits of the same family is obserped to vary considerably. Passeriformes are less infected with Mallophaga as compared with the birds from such orders as Rallidae, Charadriformes, Anseriformes, Galli¬formes