Do mechanical bird scarers work on farms and in orchards?
Most mechanical devices such as motorised hawk models and noise-producing machines only have short-term effectiveness in scaring birds away from crops. However, over the long term, birds become accustomed to these devices and begin to ignore them. Solutions such as netting orchards and planting native food trees that may distract birds from crops could be more effective solutions. State Agriculture Departments should be able to further advise farmers.
