We dont eat them much any more but Seagull Eggs were high status foods in medieval Ireland. The twelfth century Lebor na Cert includes twenty gulls’ eggs among the stipend (tuarastal) payable to the king of Ulaid. An early tribal name that came to impart ‘The king of the northern province’.
Harvesting wild eggs is a bit of wildcraft that is overlooked imo. Its very productive even if its hard work. You can harvest seagull eggs regularly and the birds wont abandon their nest. They might produce 30 eggs in a season without abandoning their nesting site and there are A LOT of Seagulls in a colony.