Some features of Corncrake's ecology in the conditions of modern agriculture
This paper considers the dynamics of acoustical activity and the impact of hay harvesting and cattle grazing on the nesting of Corncrake Crex crex on three plots in the Ryazan, Vladimir, and Novgorod regions. Peak acoustic activity is achieved in June. The survival of nests and broods of up to 5-day old nestlings depends on the time span of hay harvesting (from 3 up to 68 %)....