Lesser Black-backed Gull

Thank you Avinash for your help. You made everything so clear. I didn’t notice that the fourth photo might be another species. I am going to have that separated as a new spotting.

You are right zhabiz, the color of legs is very important, and when rounded of to Yellow Legged and Lesser Black Backed, I suggest latter as the color of wing might give us hint, Its darker grey. Also, I feel the last bird is Yellow legged Gull, I feel it is lighter grey in color compared to first three pics with rest everything same.

I can't argue with this!

If they are going to be classified, they might as well be classified right! So sometimes a little arguing is a good thing!

Thanks again, Jimmie. Apparently this leg color is very important in classification of Gulls. Besides I tend to argue a lot with people!! ;)

Even though I suggested the Great Black-backed Gull, I tend to agree with the speculation in your notes that it is the Lesser. After posting, I noticed that the legs were still not right to be the Greater.
Great spotting, in any case! :^)

Thanks Jimmie, but still, "Great Black-backed Gull" doesn't have the yellow feet.

Thanks BluberryLiLi for your suggestion. However I don't think this is "Western gull", because western gull has pink feet and lives in north and south America, while this gull has yellow feet and lives in UK.