Several times now, I have found something inside the eggs of what I believe is one chicken in particular. I don't know how to describe it. It looks like off white, beige like, crescent shaped particles. One time I found one that was the size of a pencil head. Today, however, there were 3 about 1/5 that size. It is almost like something that is folded back on itself. If you were to unfold it, it might look like a worm, but I am not sure. I have tried to find the life cycle and embryonic development of several worms, but can't find what I am seeing. Does anyone know what this can be?