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Bird repeller - A review

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All around the world, the birds are a major threat in the field of agriculture causing damage to economic field crops, storage houses and also dirtying human life areas. These birds are control by practicing different traditionally outdated method. But now a day’s with the change of technology different electronic repeller are adapted for bird control in agricultural field. This study had been carried out to know the different electronic bird repellers are available and also the technique used in it is discussed.