Rook is found more often in areas with arable land, river and steppe regions, where the soil is soft and fertile.
The rooks install their nest in trees, often several nests in the same tree. This can lead both to darkening trees and the noise pollution around. Moreover, like any harmful bird, because of the large number of individuals of a colony, the accumulation of droppings can damage structures. The deterioration is caused by uric acid (organic acid resulting from the combustion of poultry protein). Rooks are carriers of the West Nile terrible virus (crows brought this virus in the US in 1999). In regions where agriculture is practiced, rooks avoid areas where winter wheat is grown and prefer areas where spring wheat can ne found, so it is regarded as a pest species.