I disagree totally Labradora they are a highly intelligent bird They are good parents who stay with their partner all their lives no divorces for them They are so clever they can fly all the way to the Atlantic and still find their way back to the very same chimney pot the following year We can’t find ourselves anywhere without a sat nav or map
We have overfished the ocean so they don’t have enough natural food to go around When I was a kid living by the seaside you mostly saw the gulls on the beach and following the little fishing, crabbing, shrimping boats but none of those exist now, so the gulls adapted and found that unlike when I was growing up and it was frowned on, nowadays it’s normal for every human to eat on the hoof morning, noon and night add to that the dirty ones who drop their food around or try to stuff it in overfull bins. Then the gulls cleverly found that as the larder of the sea was no longer appealing they could find human food on big landfill heaps again humans throwing away more than they use or eat
So my answer to you is stop eating food when out and about they are not bullies they are entrepreneurs learning how to live UNnaturally They are also all endangered even the ones that seem very common and around in their hundreds
