Seagulls are ravenous sea birds (personal experience). The name seagull is kind of misleading because the buggers also are inland birds. Just check out your own inland garbage dump. Despite the noise, they do provide a service which consists of scavenging dead animals and organic litter which could pose a health problem to bare-footed bipeds. Seagulls also keep many photographers busy trying to catch a shot of the elusive seagull butt! I'm not sure why.
Carpinteria State Beach, Carpinteria, California 2010