Does anyone know what bird this is

Freezing conditions here at the moment so have fed pieces of apple to the garden birds as well as usual feeder nuts etc

A bird I have never seen before has turned up this mornign about the size of a blackbird or slightly larger but it;s wings droop more it has a grey head with dark around it's eyes and small light bib, brown wings and shoulders, with grey patches above and below the black tail, the breast has a ligher bit down the middle with darker at the sides. It has been eating the apple pieces

 I do have a (not very brilliant) picture as I cannot get close to it. The eyes appear white but I think that is just the picture.

 I thought it was a strange coloured blackbird at first but the markings are exactly matching each side normally th strange blackbirds I have seen the white or grey marks are patchy.

It is very belligerent towards all the other birds and drives them away

Any clues welcome please