The Tamil Nadu Agricultural University recently secured a design patent for its Dual Motor Bird Scarer, granted by the Controller General of Patents, Designs, and Trademarks in the Government of India.
In various agroecological systems, birds pose a significant threat to crops during sensitive stages, causing economic damage ranging from 25 to 65 percent. Various control methods, including visual deterrents like machans, crows, half kites, dead birds, balloons, reflective paper plates, and reflective tape, are employed. However, birds tend to acclimate to these methods over time.
To address this, a drone-controlled scarecrow was developed, utilizing technology widely used for spraying and sowing. The drone, mimicking bird flight, emits sound to deter birds and is powered by two motors, controlled remotely. The device, equipped with a sound unit producing random scares, proves to be a simple and effective solution for farmers.