Seabirds are under threat worldwide from a variety of pressures both on land and at sea. Food availability is often an important driver of seabird survival and productivity. Large amounts of offal are discarded by the fishing industry in the North Sea, with many seabirds already making use of this fisheries waste as part of their diet, targeted offal provisioning has been suggested as a means of bolstering specific seabird populations most affected by human activities. To identify species mos...