In fact, these small windmills are neither used for heat dissipation nor for lightning protection. Their main function is to drive away birds. Because every migration season, many birds nest on telephone poles, and the structure of telephone poles is more stable than branches.

However, the materials used by birds to build nests are complex and diverse, including conductive objects such as iron wires, which are prone to short-circuit accidents once they fall on power lines. So the electric power department came up with this bird repellent device similar to a windmill.

Orange is visually irritating and can play a certain role in driving away; In addition, the mirror installed on the small windmill blade can also reflect strong sunlight when it rotates, which will make birds feel dizzy when the sunlight hits their eyes. With the blessing of these light and color effects, birds will stay away from telephone poles, thus ensuring the safety of the circuit.

Common methods of repelling birds

1. Drive away birds with sound. You can play firecrackers, guns and natural enemies of birds with a tape recorder. Although this can drive away the birds, if the bird's home has settled here, it will fly back after a while.

2. Use vision to drive away birds. You can put scarecrows in the yard, tie some canvases with eagle eyes and natural enemies of eagle birds on the branches, and hang ribbons and CDs on the trees to keep birds from approaching.

3. Add isolation nets or bird nets. Many farms adopt this method. You can keep the birds out of the yard directly, but it costs a certain amount of money, and the grid is high, which affects the appearance of the yard.

4. Spraying bird repellent can give off a special smell and affect the nervous system of birds. Birds will fly away after smelling the smell and will not come back for a short memory period.