- 4th World Conf.on Birds of Prey and Owls (1992 Germany, Berlin);
-International Conferences: Holartic Birds of Prey (1995 Spain, Badajos);
- Baltic Birds-7 (1993 Palanga, Lithuania);
- Bird Numbers - 1995 and 13th Meeting of the European Bird Census Council (1995 Estonia,Parnu);
- International Workshops on: Cranes (1989 Estonia, Tallinn);
International WorkshopsEagles (1991 Poland, Poznan); International WorkshopsImperial Eagle (1993 Hungary Budapest); International WorkshopsUNESCO Programm Man and Biosphere (1983 Lithuania, Vilnius; 1985 Russia, Moscow; 1988 Georgia, Tbilisi);
- International Symposium on Black Stork (1993 Latvia, Jurmala);
- International Conference "Migrating Birds No Known Bounders" (1997 Israel);
Population Ecology of Birds of Prey and Owls (1998, Meisdorf/Harz, Germany); Eastern Europe and Northern Asia Conference on Birds of Prey and Owls (1998, Kislovodsk, Russia); XI International Ornithological Conference (2001, Kazan, Russia); 7th, 8th, 9th and 10th All-Union Ornithological Conferences; All-Union Conferences on: Birds of Prey and Owls, 1st and 2nd; Storks; Swans; Corvids; Waterbirds; Mammology; Herpetology; Nature Conservation, etc. Beside that, above 40 various regional meetings on zoology, ecology, nature conservation, hunting, falconry, environmental education, etc. in the former USSR, CIS and Baltic countries: Georgia, Russia, Ukraine, Belorus', Armenia, Azerbaijan, Moldavia, Kazakhstan, Uzbekistan, Turkmenistan, Estonia, Latvia, Lithuania.
