Getting ready to crack 2 eggs for breakfast, I discovered a greyish lump in one of them, about the size of a lentil. Upon further examination with a magnifying glass, it turned out to be a white worm, about 1 1/2 inches long, and dead. I worm my chickens naturally by adding garlic powder and cayenne pepper to their feed. I'm always on "poop patrol" and very vigilant about any sign of parasites, but have never seen any in the entire 3 years we've had chickens. Could this be an isolated incident, or is it a sign of severe infestation, since the worm ended up in an egg?