Thank you all very much, I’m glad you liked them!
lokisbong I’m not sure exactly, but I would hazard a guess of about 25-30 feet. He/she was the only one that cooperated like that. There were 4 people on the beach at the time and they were aligned in a half-circle so that the birds were trapped between the surf and the photogs. Obviously not a great way to approach wildlife. In any case, this one stuck around for about 10 minutes picking apart the fish carcass it was standing over.