Piper. (I think it might be the rounded head and the placement of the two dot-like eyes on there that does it)...
Us vs Them
Old vs New
Can't bear to watch!
Once again, I've never seen a seagull do this - they're usually too busy swooping on people and generally acting quite aggro/menacing (i.e. "bombs away!") to try to sleep near humans... But that's exactly what this bird and a few others like it were doing, in yet another "Piper" moment.