Surprisingly, tipped-over sheep aren't an entirely uncommon phenomenon. They're known as cast sheep, and it happens most frequently to pregnant ewes, stocky sheep and those with heavy coats. They have trouble breathing when they're on their back, and without a helping hand to help them roll back over they can die within a short period of time.
Fortunately when Green walked up to the distressed ewe she began kicking again, determined to live. With a gentle push, Green helped her back onto her feet, and she scampered away with a waiting friend.
You can watch the full encounter below.