We may have seen the staff driving the birds away with a device outdoors. In fact, that device is called a laser bird repeller. Today, Xiaobian gives you a brief talk about whether the laser bird repeller can really repel birds; What exactly is its working principle.

Laser bird repeller can really work, but it is not "laser bird hunting" but "optical deterrence".

It uses the strong contrast, dynamic movement and visual stimulation of laser beams to make birds have an instinctive fear and avoidance response. In particular, some social birds, such as sparrows, crows and starlings, are very sensitive to light changes. When they see the light spot swept by the laser, they will think it is some dangerous object and fly away in a conditioned way.

The principle is actually very simple, which can be summarized into three key words: visual stimulation, fear memory and regional interference.

Visual stimulation: The visual system of birds is much more sensitive than that of human beings, especially to dynamic light sources and flickering light spots. The light emitted by the laser bird repeller (usually green laser with a wavelength of about 532nm) can also form a strong brightness contrast during the day. When birds see this "bright line", they will instinctively avoid it.

Fear memory: Although birds are small, they have strong memory. Laser is like a sudden "threat" in their eyes, and this threat has no fixed direction. If it is swept from time to time, they will form a memory of "danger here" and gradually move away from this area.

Regional interference: The laser bird repeller can set the automatic scanning mode, so that the light beam moves continuously within a certain range, which is equivalent to forming a "dynamic deterrent zone". In this way, even if a bird lands at first, it will be driven away by the moving beam, and it will not come near for a long time.

Laser bird repeller can really repel birds, and the core is to make use of the sensitivity of birds' vision to make them have instinctive avoidance behavior. Green band (532nm) laser is the mainstream choice, and the effect can be stable only when it is used in coordination with time, angle and moving mode. It is not violent and does not harm animals, and it is a relatively environmentally friendly physical means of repelling birds.