This picture is the prelude to the most exciting moment of the afternoon. An adult is flying in from the left having returned from the ocean. The wing appearing above the nest must be that of one of the youngsters excited by the imminent arrival of food. Judging by the size of that wing, it surely won't be long before the youngsters start flying.

Unfortunately, the quality of this picture leaves a lot to be desired. The image is suffering from the dreaded blue fringing. I'm hoping that this is the result of the poor light in combination with the extreme zoom. Certainly, that first picture taken in the brighter light didn't have the problem to anything like the same extent.