Oystercatcher Welfare and Shellfish Predation Conflicts on Mussel Beds

Oystercatchers feeding on commercial mussel beds face lethal control from aquaculture operators, raising significant welfare concerns about the persecution of a protected species.

Key Facts

Oystercatchers are fully protected under the Wildlife and Countryside Act in the UK
They feed on mussels, cockles, and other shellfish, sometimes in conflict with aquaculture interests
Lethal control licences have been issued to mussel farmers in some circumstances
The species has a long lifespan of up to 40 years and slow population recovery from persecution
Non-lethal deterrents including acoustic devices and netting are available alternatives to shooting

Welfare Considerations

Oystercatcher welfare is threatened by lethal control on shellfish aquaculture sites, causing direct mortality in a long-lived species that naturally pairs for life. Shooting causes painful death or injury, and orphaned chicks from killed breeding adults experience starvation. Non-lethal deterrence through acoustic scarers, reflective tape, and physical exclusion netting is effective at reducing aquaculture losses without welfare harm to birds. The welfare case for prioritising non-lethal deterrence is strong and should be the required standard before any lethal control is considered.

What You Can Do

Advocate for mandatory non-lethal deterrence requirements before oystercatcher lethal control licences are issued
Support shellfish aquaculture operators in adopting bird-exclusion netting and acoustic deterrents
Report suspected unlicensed killing of oystercatchers to wildlife crime authorities
Contribute oystercatcher population data to national monitoring schemes
Engage with government agencies on strengthening the test for issuing lethal control licences for protected birds