Application of Repellent Gel to the Surfaces of Transmission Towers for Wild Bird Management

Transmission towers are frequently used as perching and nesting sites by wild birds; however, these structures expose birds to the risk of electrocution when their bodies bridge energised components. Non-lethal repellent gels designed to discourage birds through tactile discomfort may redirect birds away from high-risk surfaces without causing harm, but their effectiveness has not been thoroughly evaluated and species-specific responses remain unknown. Because electrocution risk is concentrated in specific structural components rather than across entire towers, assessing whether repellent gels can reduce perching on hazardous areas is a priority for practical, safe bird management.