We were pleasantly surprised to find that the laser pointer can effectively drive away birds without harming them, then bird deterrence and dispersal. HTPOW Lasers for bird repellent and bird scaring, due to advanced patented optical technology a laser beam is emitted which is optimized for bird repellent over a long distance. Birds perceive the green laser beam as a physical danger which is coming towards them. The only alternative to avoid being hit is flying away. This is the same reflex when birds fly away when a car approaches. The Drive Birds Lasers appeals to the survival instinct of the bird. Unlike conventional methods of deterrence birds will not get used to the laser beam of the high power laser and will be always be repelled. After systematic use, the birds will consider the field on which the laser is used as unsafe and will not return.
Therefore, such large-beam, low-powered lasers are readily available to ordinary consumers. Tight-beam, high-powered lasers are much more common. Using such a useful laser with birds may be a hazard to the animals. Certainly, any Class 3B or 4 handheld consumer laser (for visible lasers) is an eye hazard to humans. You would not aim these at persons or animals.