Mute swans face welfare hazards from lead poisoning, fishing line entanglement, and powerline collision — welfare interventions on waterways directly protect individual swans across the UK.
Swan welfare on waterways faces persistent threats. Fishing line wrapped around wings causes progressive necrosis and starvation as birds cannot fly to find food. Ingested lead from sinkers causes neurological disease with progressive weakness and death over weeks. Powerline collision causes acute trauma and fractures. Rescue of entangled swans requires trained response teams. Wider use of non-toxic fishing weights and improved fishing line disposal facilities directly reduce individual swan welfare emergencies.