Bird Barriers-Repellents & Controls (Manufacturing) is a specialized industry that focuses on the production of products designed to prevent birds from causing damage or becoming a nuisance. This industry involves the manufacturing of a range of bird control products, including barriers, repellents, and controls. Bird barriers are physical structures that prevent birds from accessing certain areas, while bird repellents are substances that deter birds from landing or roosting in specific locations. Bird controls are devices that are used to trap or scare birds away from certain areas.