Conspectus of the Ornithological Fauna of the USSR
Conspectus of the Ornithological Fauna of the USSR 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.
Taxonomic changes
The following is a list of the species splits & lumps proposed by Stepanyan:- Siberian herring gull, together with the race vegae to be regarded as a separate species from herring and lesser black-backed gulls.
- Asian and lesser short-toed larks to be regarded as separate species
- Yellow-headed, green-headed and black-headed wagtails split from yellow wagtail
- Masked and black-backed wagtails split from white wagtail
- Eastern great, Turkestan, and Grey tits split from great tit
- Ussuri (oriental, grey-bellied) and grey bullfinches split from common bullfinch