Whooper Swan Welfare and Wintering Habitat in the UK

Whooper swans winter in significant numbers in the UK, relying on wetland and agricultural sites that require active management and protection.

Key Facts

Around 6,000-7,000 whooper swans winter in the UK, arriving from Iceland
They graze on submerged aquatic vegetation, waste grain, and improved grassland
Wetland Wildfowl and Wetlands Trust reserves provide critical winter refugia
Lead poisoning from ingested fishing weights and shotgun pellets is a welfare concern
Conservation grazing management at key sites maintains appropriate feeding habitat

Welfare Considerations

Whooper swan welfare during UK winters is affected by food availability, disturbance, and the persistent threat of lead poisoning through ingestion of discarded fishing weights and spent ammunition in agricultural soils. Lead poisoning causes neurological impairment, weakness, and death over several days. WWT sites including Martin Mere and Caerlaverock provide managed, low-disturbance habitat critical to winter survival. Vehicle strikes on roads near wetlands are a significant cause of mortality.

What You Can Do

Support WWT reserves managing winter habitat for whooper swans
Use non-toxic fishing weights to reduce lead poisoning risk to waterbirds
Observe swans from a respectful distance at wintering sites to avoid disturbance
Report sick or injured whooper swans to the British Trust for Ornithology or WWT