White (albino) crow

Hi all,

I Over the last few weeks while out walking my dog, I have regularly spotted a pure white crow. I'm guessing it's an albino, and It really is a lovely sight, especially when in flight. It has got me wondering whether this is a common phenomenom, or am I seeing something quite rare?

I'm hoping I've come to the right place to find out.  I have posted some clips of the crow on youtube, so if anyone is interested let me know.

cheers for now

YouFUMS