I have seen an unusual bird in my garden. Can anybody identify it please?

I live in Cheshire in the UK. The bird is roughly the size of a pheasant. it has a dark brown back. Along the Wing edge five white flashes. Its head is almost black, and this colour slowly turns to a much lighter grey as it gets under the birds stomach. It has quite long legs and quite long claws, coloured yellow. Its eye is bright red, and it has quite a strong beak, white at the tip with black flecks as it gets closer to the head. its tail was quite short and stubby with a white fleck along the side of it. I have photos of this bird, but not very clear as it was so far away. I would love to be able to identify this third