They are smart too (or at least smarter than me) and work in teams. I was eating fish and chips on the beach at Lyme Regis and the gulls kept edging towards me up the beach. If I chucked a pebble at them they’d hop back a few meters but immediately started edging forward again. This went on for a while until one zoomed in from behind and grabbed a chunk of fish right out of my hand as I picked it up from the carton. Bastard!