I see it could be two ways. One: the big dog is very kind and left the big bed for the pup. Two: the pup went on the big bed and left the small bed for the big dog. In that case, if I was the big dog, I would just lay on the small dog (or around it).
Now it's not like I want a seagull but I guess I'd have to say I want THIS particular seagull. Why? Because it didn't read the sign hence it broke a rule. It is a rebellious animal. And I love a rebel.