Seal Disturbance at Haul-Out Sites: Welfare Impacts of Human Presence

Grey and harbour seals are vulnerable to disturbance at haul-out and pupping beaches, where human approach can cause stampedes, mother-pup separation and chronic stress in breeding populations.

Key Facts

Haul-out sites where seals rest and breed are highly sensitive to human disturbance including walkers, dogs and photographers
Stampedes triggered by human approach cause crush injuries and mother-pup separation, with pups sometimes abandoned
Grey seal pups are born in autumn and winter and depend on their mothers for three weeks of intensive nursing
Chronic disturbance at haul-out sites forces seals to spend more time in the water, increasing energy expenditure
Dogs off leads are identified as the most significant disturbance trigger at seal beaches in the UK
Marine Conservation Society and British Divers Marine Life Rescue publish minimum disturbance distance guidelines
Social media sharing of seal location coordinates has increased visitor pressure on sensitive sites

Welfare Considerations

The welfare impacts of human disturbance on seals range from acute injury in stampedes to chronic stress from repeated displacement and mother-pup separation leading to starvation. Grey seal pups have a narrow nursing window; even brief separations from mothers reduce milk intake and survival probability. The social media era has intensified pressure on sensitive sites as location sharing draws growing numbers of visitors to previously quiet beaches. Responsible wildlife watching at seal sites requires maintaining recommended distances, keeping dogs on leads and avoiding sharing precise location details for sensitive breeding areas. Enforcement of disturbance regulations at key sites is essential for population welfare.

What You Can Do

Maintain a minimum distance of 100 metres from seals at haul-out sites and follow local guidance
Keep dogs on leads at all times near seal beaches throughout the year
Avoid sharing precise seal location details on social media platforms
Donate to British Divers Marine Life Rescue for seal rescue and welfare work
Report seal disturbance incidents to local wildlife authorities and conservation organisations