I was cleaning out the coop this afternoon and let the girls out to free range while I cleaned. One of the girls (I did not see which one) pooped outside the coop. I noticed what looked like small grains of rice moving around in the fresh poo. later I found some very runny poo that had the same thing. Are these worms or eggs, and what do I do about it? Everyone seems healthy as they were all scratching for bugs in the yard and eating up a storm. And they are all drinking. Any advice? Thanks!