First found by Tony Blunden (involved in the Brown that was on the Scillies). Managed to get down with Thor Veen who took these photos. Sorry about the quality - the bird was distant and the photos have been heavily cropped. Click on photos for a larger version
Would be interested in any thoughts on its ID. Looks quite good for Brown to me, but I do have reservations - e.g the squareness of the tail and the paleness of the lores - (although tail appears rounded on the left hand side). Will comment more and post fieldnotes in due course. Any comments welcome though.