What is the primary use of porcupine wire?

The primary use of porcupine wire is as a bird repellent. This type of wire consists of sharp, protruding elements that deter birds from perching or nesting in specific areas, such as rooftops, ledges, and other surfaces where birds might pose a problem. Its design is intended to create an uncomfortable perch for birds, thus encouraging them to avoid those areas without causing them harm.

While other options may involve methods for controlling pests or building elements, they do not pertain to the specific and effective function of porcupine wire in preventing bird activity. For instance, while one could theoretically use wire to construct a fence or catch rodents, these tasks are better suited to other types of fencing or traps specifically designed for those purposes. Similarly, porcupine wire is not intended for use in electrical wiring, as its design and materials do not meet the requirements for safe electrical applications.