Dorsel Recumbency - Something a shepherd/ess needs to be watchful for.
Once a sheep rolls past that crucial 90 degree point where they cannot
get their feet on the ground to help right themselves, they usually
cannot roll back over. Death can occur between five to thirty minutes.
This is the second time I've found one of my sheep in this situation.
Dolly must have slipped in the mud coming out of the barn and got
stuck. Luckily, I noticed the other sheep staring at the barn door
causing me to wonder what was up and I went out to see for myself and
found her. She did stumble around a bit and it took her a good thirty
minutes or so to start acting like herself. In the images
above, Beacon managed to get herself turned over. Here's a
good link to read more about Dorsal Recumbancy http://kinne.net/dorsrec.htm