White tailed Blackbird

I spotted this lovely Blackbird in the back garden today. In the past I have blipped leucistic blackbirds (link below) which had very mixed feathers but this one just seems to have one pure white feather in its tail. I grabbed a quick shot through the window before it flew off, hopefully it will come back for another visit soon.

https://www.blipfoto.com/entry/3062077944835870221