First-Winter Caspian Gull

In my previous post I mentioned that there was a first-summer Caspian Gull at Shawell A5 Lagoons on April 2nd, well it was still there yesterday. It is not always easy to know whether you are seeing a new gull or one you have seen before. At first I thought it was a new Caspian Gull, but after checking I feel its coverts are the same in both sets of images.

First-Winter Caspian Gull, Shawell 06/04/16

First-Winter Caspian Gull, Shawell 06/04/16

First-Winter Caspian Gull, Shawell 06/04/16

First-Winter Caspian Gull, Shawell 02/04/16