Anti-bird thorn is a product developed for the prevention of bird damage and nesting in power towers. It is installed at the upper position of the pole of the tower of the transmission and transformation line equipment. It consists of 24 steel wires, which are scattered and effectively prevent birds. The class fights, stays and builds nests directly above the wire porcelain bottle string to ensure the smooth flow of the line and reduce the occurrence of power outage accidents. principle.