The Silent Seagull
In Helsinki we have these huge city-seagulls that are right mean arrogant mofos; they'll steal your sandwiches and ice cream from your hands and then crap on you, cackling maniacally as they fly away.
They aren't afraid of humans at all, especially since tourists keep feeding those flying rats regardless of how many "do not feed the birds" signs are put up. They also seem to get bigger and meaner every year, eating fast food and not fish.
So I fully expect this to happen in a few years.