Dont get me wrong, I like the seagulls, but I would wish no harm from them on anybody.
A seaside resort probably wouldnt seem right without them.
As I previously pointed out, the problem is with the irresponsible people that have been feeding them over the years. - They have learned that there are easy meals to be had in the area, whether this is food freely given to them or food they steal - they dont/cant differentiate.
Also because food is so freely available in the area, their population has increased.
Culling them will not work, as they will just repopulate back to their current numbers, unless the underlying problem is solved - stopping their food supply.
If their food supply is cut, the numbers will slowly go down & they should slowly become less aggressive - this would take a number of years though.
As Nemesis posted, & I have previously pointed out, the majority of seaside towns that rely on tourism for most of their income, make it illegal to feed the gulls & have many high profile signs threatening people of legal action & massive fines for feeding the gulls.
These measures have been proven to work - without a cull.