The welfare and conservation challenges facing Britain's smallest tern species on shingle beaches.
Little tern welfare and conservation face an unusual challenge: their preferred nesting habitat — open coastal shingle — is also intensively used by humans during the summer breeding season. Nest trampling by beach users, disturbance from dogs, and vehicle access to beaches cause direct nest failure and chronic adult distress during the critical incubation and chick-rearing period.
Individual welfare during bad weather events is acute. Little terns nest at or near the high-tide mark — storm surges and exceptional tides flood nests, killing eggs and chicks. Adults that have invested weeks in incubation face complete reproductive failure. In poor breeding years, entire colony productivity may be near zero.
Warden schemes with predator-exclusion fencing have transformed breeding success at managed colonies. Electric fencing excludes ground predators, wardens deter aerial predators and manage human disturbance, and signs and barriers protect nesting areas. These direct welfare interventions have prevented colony abandonment at key sites.