This is one of my favorite shots from this trip. I took quite a few shots of these gulls as they soared around, and I'll have to admit that it wasn't until I got back to the yacht and reviewed the day's images on my laptop, that I discovered it was carrying something in its beak. It appears to be a small rock of some type. In doing some reading on this gull, I learned that it is unique in being a nocturnal feeder, and also that it arranges pebbles, bones and other debris in a circular pattern around the single egg it lays. Perhaps this stone was being carried for that purpose?