Bird repelling system with improved mounting fixture

Abstract From the Canadian patent

A vineyard has conductive trellis wires which extend between poles to provide support for the grape vines. At least some of the trellis wires are grounded. A number of identical bird repelling devices are widely spaced throughout the vineyard. Each has a length much shorter than the distance between adjacent vineyard poles, the length being sufficient to allow a bird to land. The bird repelling devices have a circumference less than approximately one and one-half inch to allow the feet of a bird landing thereon to cover most of its circumference. Each bird repelling device is composed of an elongate insulating member and an electrically conductive rod secured to it. The rod is substantially …