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Soaring birds crossing the Bosphorus near Istanbul, Turkey, were monitored by the Istanbul Bird Watching Society (IBWS) in the 2007 spring season. During our research, we established an area that is significant for large numbers of migrating soaring birds crossing from Asia to Europe. In total the most abundant spp were White Storks (Ciconia ciconia) 44,566, Eurasian Buzzard (Buteo buteo) 23,954, Lesser Spotted Eagles (Clanga pomarina) 7,036 and European Honey Buzzards (Pernis apivorus) 3,653.doi:10.15666/aeer/1606_79537968 fatcat:xnrggtqvavdbbd2d5gownxcvna