Herring Gulls
1: © Ruud Altenburg, 21-05-03. 2cy argentatus. This bird has recently moulted most of its median coverts.
2: © Ruud Altenburg, 23-05-07. 3cy argentatus.
3: © Ruud Altenburg, 21-05-03. Probably a 3cy argentatus but it's difficult to exclude michahellis.
4: © Ruud Altenburg, 21-05-03. Adult argentatus.
5: © Ruud Altenburg, 21-05-03. Adult argentatus.
6: © Ruud Altenburg, 21-05-03. Adult argentatus. The legs are deep yellow but note the cachinnans-like wing pattern on P10: a large white tip that has merged with the mirror and a long white tongue.