Hi, this is my first post. I found this bird last Saturday on Sherkin Island off the south coast of Ireland. I noticed a difference at some distance from the small number of Chiffchaffs around. I managed to get off a couple of shots before it vanished. Only when I got home and saw the pics on screen did I notice how different with what I take to be a prominent supercillium and very short primary projection. I was wondering if it could be Raddes Warbler? Any suggestions would be appreciated. Paul.