This translation from the Russian may explain the large numbers of migrating Ozone Warblers - although we're not sure.
We do know that Ozone Warblers appear to be causing fewer problems in Russia than in the West.
In Kyrgyzstan, a man on a paraglider hanging on power lines3 March 5, 2016 11:06- Marat Urals
The Suzak district of Jalal-Abad Oblast man on paraglider hung on the high-voltage line power line "Kemin Datca." This was reported in the Ministry of Emergency Situations of the Kyrgyz Republic.
As stated yesterday, March 4, resident of the village masses Nooken region, born in 1978, flying a paraglider. He lost a gust of wind, and it was cast on the high-voltage power line.
At the scene went rescuers 30. Two employees of power plants climbed up on the line and shot the man.
http://zanoza.kg/doc/334447_v_kyrgyzstane_myjchina_na_paraplane_povis_na_linii_elektroperedach.html