Leucistic Jackdaw ? UK (1 Viewer)

Observed this bird being mobbed by crows and jackdaws today 08/10/2014 the colour made me think it was the local kestrel at first glance, but on closer viewing it looks like a light brown jackdaw, I was mucking around with some of my settings on the camera at the time trying to get the right exposure for the crows against a bright sky and they are not that far off, so if anyone can give me an idea what it is?

Almost forgot location, Wingate quarry in county Durham, UK

It's a jackdaw with isabellinism (a subvariety of schizochromism, similar to but not quite the same as leucism). Very nice find, it isn't common at all. Wish it was more local so I could see it myself...

Cheers
Never heard of isabellinism till now.

You hear about it in penguins most often, outside of that it is quite rarely documented. But it can happen in any dark plumaged bird.