The "invisible wings" to ensure the safe flight of aircraft will affect the flight safety of aircraft if the birds are not controlled and guided. For example, when a bird enters the turbine compartment of the external engine of an aircraft, it will damage the turbine blades, which will lead to engine failure and even serious air crash. In addition, there are many precision instruments on the plane, especially some exposed instruments. Once they are hit by foreign objects in flight, the consequences are unimaginable. Even if a bird hits the front windshield of an airplane in the air, it will pose a threat to the safety of the pilot and the airplane. 15 to 30 minutes before the plane takes off and lands is the main working time of the bird repellent team, and the range of 300 to 500 meters around the center of the plane is the key bird repellent area of the bird repellent team. "This range is the buffer zone for the take-off and landing of aircraft." Besides the bird-repelling operation in specific areas required by relevant airport departments, the working hours of the bird-repelling team mainly change with the changes of flights and flight plans.