It seems all good for 4cy Yellow-legged Gull, but as know 3/4cy bird are sometimes very hard to age..! Do you have a picture of the upper wing Christian?About the first one I presume it's a subadult (4cy?)...
I suppose the first one is a 4cy, in all respects as adult with only a small mirror on p9, a few black marking on alula feathers and primary coverts and a broken indistinct black band on the gonys. The second one is a 3cy I think, note the dark peppered iris, immature bill, pale yellowish legs, dark marked under wing pattern and you can see at the underside of the tertials that they show some immature dark patterns.Hi Ies,
Here is a view of the upper wing for the first bird. Also a shot with another supposed 3cy/4cy bird.
Yes, great pic Christian! Bring them over to ORG forum!
JanJ