Some sheep eat grass - some dogs do too. If you try to read up on it, you will find that "everybody knows" dogs eat grass when they feel unwell so they can vomit. I watched my dog run up to nice juicy grass and eat and eat, then run to another patch of grass and eat some more. She seemed perfectly fine, well, maybe a bit obsessed with the grass, but no vomiting. I thought she was thirsty and offered water, I thought she may need greens in her diet and added vegetables and fruit. Alas, the grass obsession continued. I turned to the only two books I could find on Pyrenean Shepherds (see links below) - no mentioning of this strange habit.
As a last resort I asked on the German Pyr Shep forum, and, voila, Aluna is not alone. So is this a Pyr Shep thing?
Links to the books (unfortunately only available in French):
Le Berger des Pyrénées byJacques Coly (and what an undertakling it was to get my hands on that one on my only day in France last winter!!!)
Le berger des pyrenees by Herreros/Joel (out of print but I found a used copy on amazon.fr)
