Birds are hosts to many organisms and a number of dangerous ectoparasites that causes many diseases. The presence of large numbers of birds (outside of natural habitats) creates unpleasant smells, great filthiness of space, noise and above all potentially the risk of occurrence, higher number of infectious diseases. To prevent their presence (in the space where thay are not desired) using the method: mechanical protection (network, needles), the electrical pulse systems (low voltage), sound and ultrasonic devices and chemical assets (repellents). All these methods do not endanger the life of birds.