Seabird nesting colonies are highly sensitive to human disturbance, and recreational boating, drone flights, and tourism can cause nest abandonment, chick death, and colony disruption.
Human disturbance of seabird colonies causes direct and immediate welfare harm. Flushing events leave unprotected eggs and small chicks exposed to sun, rain, and predators. Repeated disturbance during sensitive periods can cause colony failure, representing both welfare harm to individual birds and conservation harm to breeding populations. The welfare and conservation cases align perfectly here: respecting buffer zones and no-fly restrictions protects both individual animal welfare and population viability.