Is there any way to drive away birds? My family has a 40-acre orchard, and birds fly in every time the grapes are harvested. The method used now is to pull the net and pull the audience.

Indigenous method 1: braid your hair with moxa sticks and twist it as tightly as possible. Insert 1 firecrackers on the grass braid every 20 cm. Pull a wire in the orchard, wrap the grass braid around the wire and catch fire at one end. The grass slowly plaits,

Slow smoldering, light 1 hour firecrackers to drive away birds. Small orchards hang 1 pigtails, and large orchards hang several pigtails, which explode continuously, making birds afraid to come to the orchard.

Bird repellent 1: downloading kites or eagles' calls online and playing them every ten minutes is very effective in repelling most birds.

Bird repeller II: Powerful solar bird repeller Bird and mouse bird repeller is the best way to effectively repel dogs, cats, birds, rats and wild animals by using the ultrasonic wave and powerful flash that animals are most afraid of. It can completely and effectively repel them, and it is most suitable for people in farmland, pasture and big courtyard. (It is available on Taobao) This product adopts the "physical expulsion method" to achieve the expulsion effect. The advanced design does not need chemicals at all, and it can achieve the effect of expulsion with a little electricity, and will not cause secondary public hazards or environmental pollution at all. No harm to animals.

Bird repellent tape (special color tape): available on Taobao. Please have a look first.

Bird repellent: It is also available online. You have to ask the merchant about the specific effect.

Last question: Where is your yard? Look at the population ! ! !