Gannets breed in spectacular cliff colonies around the UK. Their welfare depends on sandeel prey availability, colony disturbance management, and plastic entanglement prevention.
Gannet welfare at colonies is threatened by multiple interacting factors. Food availability from sandeel stocks is the primary nutritional welfare driver. Plastic entanglement in colony nesting material causes wing deformation, strangulation, and death in adults and chicks. HPAI outbreaks caused dramatic mortality events that welfare and conservation bodies were unable to prevent at population scale. Cleaning up plastic in colony nest material is a direct welfare intervention that colony managers and visiting volunteers can contribute to.