We have lived in a couple of coastal locations in The UK, where gulls are a major pest, even when we lived in Cheltenham because of the proximity of The Severn they were a pest there, here, at least in Caleta I see very few gulls anywhere, except at this time of year when  there are flocks of them all heading North up to as many as 50/60 birds at a time go over our house, now I am aware that some species of gull are migratory, so it is not surprising, however I never/rarely see any heading Sou