Design, Manufacture and Test of a Solar Powered Audible Bird Scarer and Study of Sound Ranges Used in it

All aroundthe world, domestic birds are a major threat in the field of agriculture causing damage to economic field crops, storage houses and also dirtying human life areas. Such most common pest birds in India are House crows (Corvus), Common myna, Jungle myna, Brahminy starling, White cheeked bulbul, Acridotterestritis etc. In order to distract these birds away, many traditional methods such as Scarecrow models, Hawk kites, Coloured lights, Lasers, Flashes, Chemicals etc are used which nowadays do not seem very effective. An effective bird detterent technique i. e. Solar Powered Audible Bird Scarer has been developed. Different sounds due to which different species of birds get dettered were also noticed and studied. The testing of the scarer was performed for about one month in August 2015. All major species of birds were tested but the main focus was on Crows as they are the major damage causing bird species in India.22 common known predator sounds from Eagle (Aquila chrysaetos), Owl (Glaucidiumpasserinum), Falcon (Falco eleonorae) etc were tested and it was observed that the sound from Falcon was the most effective to scare away Crows as well as other species. One most important observation was that the success of the scarer mainly depends on the predator sound type, its volume, quality and its repetitive nature.