OK chaps, what's your opinion on this bird. I had it on the last day of Feb at Llyn Alaw whilst "photographing" the Ruddy Ducks. I almost stood on it. My first impression was **** that's pale. It looked pale, obviously a nice male, white tramlines and a whitish wingbar. I didn't see it's rump and although I tried with a dental mirror to see it's undertail coverts I don't know what was going on down there.
My point being you need very good photos to try and ID these birds and even then it's not straight-forward or always possible. If you can't always ID them in the hand then what chance have you got in the field unless they are at the extreme ends of the spectrum.