Found one of my laying hens dead under a bush, I let them free range. No blood no signs of anything wrong. I remember a few days ago several hens were acting very strange, laying on their side and stretching their one wing and leg out, then after a while the got up and all was well. No sing of any other chickens acting different since then. Should I stop selling eggs just for a precaution? And any ideas of what this could be? thanks.