I have had to start a new topic as can't seem to add a further image, but this is a continuation of LBJ.
The bird continues to call, and yesterday I got this new photo. It seems to have dark legs and fairly short wings so am now leaning towards chiffchaff rather than willow warbler. In addition I did hear a chiffchaff sing a couple of days ago, not at the same time as the 'caller' was about, but about 5 mins later from further away. But is it enough to record?
Yes Sally, I agree with you that this is a Chiffchaff.
Thanks - I've now recorded it as Chiffchaff