Lots of people hate Gulls. They can be messy and aggressive, but they're just doing what nature wants them to do.
I was with my Dad early one morning last week when we stopped to photograph these Black-headed Gulls. (Dad was looking for a Mediterranean Gull but didn't find it).
I think they look great and are brilliant to practice your photography on. We threw out some bread and these guys came to us.
You do have to watch out for poo though - once my Mum got a load on her when she was throwing bread and my Dad was photographing the birds.