Arctic terns make the longest migration of any animal, flying from Arctic breeding grounds to the Antarctic and back annually, experiencing welfare challenges from changing prey availability and weather events.
Arctic tern welfare during migration depends on reliable prey availability at staging areas throughout the journey. Climate-driven shifts in prey distribution can leave birds without adequate refuelling opportunities at traditional stop-over sites. Poor breeding years in the UK are linked to sandeel availability, making seabird prey conservation a direct welfare issue.