The fact that you are in the UK opens up the possiblilities since you have more varieties in your part of the world than we do in the states. I have to agree with Maxx that it is a self-blue leghorn. She is lovely!
No she isnt laying yet .. not that i know anyway, She belongs to my brother and giving her away isnt even an option.. She is my fave bird that he has hence the reason i wanted to know what she was ..
We do seem to have alot more variaty of birds over here in england ..
So im guessing a blue leghorn is rare ?? I guess we need to look for a boyfriend for her