Large spaces with food, such as silos or agribusiness companies, often have serious colonization of birds, especially pigeons and doves. These birds eat grain, generating losses, but also walk through between the product, defecate and even die on it, contaminating it.

This control is necessary to prevent entry or at least that difficult, parallel and often it is necessary labor intensive capture these animals. In these circumstances, the work is complicated, because birds can not be attracted by food, because it is just that on, and you have to apply alternative methods.