The attached Word document was written for publication in last year's Isles of Scilly bird report to answer questions about some of the Marsh Warblers we had been seeing on St Agnes over the previous ten Octobers. Our mild-mannered, diplomatic, gentleman Recorder and Bird Report editor decided it was 'too controversial' and decided to leave it out, leaving certain questions still hanging. Now that I've managed to persuade the Scilly Local Rarities Committee to come round to my way of thinking and the 'controversial' bird has been unanimously accepted as a Marsh Warbler, I thought it might be of some benefit to other birders to see the notes attached. Due to resizing issues, I've had to upload the pictures separately.