Baa Baa Black Sheep

I've passed this field of sheep, with their feed of turnips, a number of times over the last few weeks. The large flock contains the obligatory single black member, so today I stopped on the way home to blip it.

Typically, it had taken itself off to the far side of the field, and was either hiding behind its colleagues or showing me its behind!  However, after a little while I managed this clear shot. It wasn't until I downloaded to the computer that I noticed the strange look on the face of the white (or rather dirty grey) sheep next to it.