Behavior and Threat Profile
Seagulls in Vice City are the ambient sound before they are the visual. The call is the sound of every beach in the world. In Leonida it is the sound that tells you the coast is nearby before you can see it.
They congregate around food sources with the specific organisation of birds that have mapped every outdoor dining location on the Vice City beachfront. The chip theft, the sandwich interception, the bin invasion. All of this is ambient AI behaviour.
They are not dangerous. They are not useful. They are an extremely functional piece of environmental detail that makes Vice City's coastal zones feel lived-in in a way that requires them to be present.