there were no other clear markings on the bird, the body was a solid fairly dark tan and the white /light cream of it's head was, as it were from the neck up, not like a skull cap. It's tail was a medium length, ie not noticeably long or short, and it flew in short bursts, hopping along a lot, I didn't see it in full flight as it hopped away over the shed roof. I have seen it twice now. Quite unusual. It was hanging around near the bird feeder which is mostly visited by five brave male robins, a family of at least seven long tailed tits and the usual mix of great, blue and coal tits. It didn't go to the feeder however. Hope this is useful, I will try and get a photo if it returns.