SOMETHING IS WRONG....

SHOCKING photo, but it was a one snap shot, before it took off - I tried to get this wee fellow yesterday when I spotted him, but he's very shy... and probably has a HUGE right to be shy - he's not what he seems....
THIS is a blackbird... yup a blackbird - BUT he's not black - he's a mutated colour - not quite white, but definitely not black! lol so does that make him a white bird? or a grey bird? he did look so out of place amongst his flock of blackbird friends.