[Blood parasites of birds in the White Sea-Baltic migratory course. 2. Haemoproteus (Sporozoa, Haemosporidia) fauna and distribution].

An analysis of the fauna and distribution of haemosporidiae of the genus Haemoproteus in birds of the White Sea-Baltic migrational direction is given. The author examined 2605 birds belonging to 86 species. Of them 906 birds (34.8%) belonging to 54 species were infected with haemoproteids. The fauna of these parasites is represented by 16 species. The problem of species and difficulties of specific differentiation of haemosporidiae of birds are discussed.