Conspectus of the Ornithological Fauna of the USSR (ISBN 5-02-005300-7) is a 1991 Russian language publication by ornithologist L. S. Stepanyan.
It contains a list of bird species recorded from the former Soviet Union, together with details of their distribution, taxonomic relationships and subspecies.
The following is a list of the species splits & lumps proposed by Stepanyan:[1]
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