A small town in the south of the country was chosen by birds and inhabited all the roofs of the surrounding dwellings. For a short time, they have so proliferated that they urgently need to be destroyed so that they do not cause serious damage to the agriculture of local residents. It is worth much effort to reduce the number of livestock of these gluttonous birds. Netting does not catch them, so you have to resort to other tricks. Try to use the hydraulics, which is set in the center of the field. Each time, as soon as one of the birds flies up to the cast-iron pipe, lower it lightning fast so that it absorbs the body of a bird with a crimson bird.