My dad phoned me earlier and said there was a thrush like bird with a totally white head in the garden. My mum was so excited she went to the bookshop for a bird ID book. She is well up on birds and would not have mistook it for a common species. She said it was a thrush-like bird with a white crown that came down to its beak. It was perfectly formed and symetrical as though it wasnt a mistake, although it could be a colour morph. Its a shame they didnt get any photos of it. Is there any birds here or in europe that match this discription?