Hi Paul,
Didn't get a good view, just a 4 or 5 second 'glimpse'. Bird was in dappled shade and against bright background, was side on so didn't see the chest at all, just the outer wing which had these white 'patches', I haven't seen these before on the hawks that usually come into the garden so pleased to hear that they are typical and highly unlikely to be anything other than a plain 'ol Sparrowhawk - I don't want to be responsible for sending anyone out on a wild goose chase
It wasn't so much that I could see the colour of the eyes, what struck me was the lack of any yellow, eyes or beak? Could simply be the angle I was viewing from, usually the eyes are so vibrant, even in the shade of my plum trees (happens to be a favourite haunting ground of the local hawks)