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Ornithologists counted number of state of emergency with planes because of birds

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The ornithologist Ryzhov Sergei suggested to develop "the airport passport" to minimize cases of collision of planes with birds. Annually to Russian Federation there is about one thousand collisions of planes to birds. The head of Branch group of aviation ornithology Ryzhov Sergei...

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Ryzhov Sergei
Dmitry Medvedev
Last position: Chairman (Government of the Russian Federation)