Common seals give birth in June and July and pups can swim within hours of birth, with welfare challenges from disturbance, disease and boat traffic.
Common seal pup welfare is threatened by disturbance during the early bonding period. Unlike grey seals, common seal pups can swim but depend on close maternal contact for the first weeks. Disturbance by kayakers, boats and beach users can permanently separate mother and pup. Phocine distemper virus outbreaks cause mass mortality events with severe individual welfare impacts. Boat strike injuries are increasingly common near popular seal sites.