Robotic laser bird repellent 

A laser bird repellent is one of the visual and high-tech solutions for bird control (Photo 5). This bird repellent method takes advantage of the natural instincts of birds; they see the approaching laser beam as a predator and take a flight to seek safety when the laser beam passes by.
This technique could be a reliable bird control strategy because 1) it is a non-destructive strategy, 2) it is environmentally and economically sustainable, and 3) it is simple and easy to install. A laser bird repellent provided important results in a 21-acre vineyard in Sonoma County, California. The vineyard with four laser units achieved a 99.8% bird reduction, saving $25,000 worth of fruit.
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