Making cheesecake this morning using yesterday's fresh eggs. I have a flock of seventeen who are generally in good health, though slightly ragged from such a cold winter. They free-range about half the day on our 22 acres and I've never noticed worms in any poo in the coop. I use the deep litter method, though the oldest wood chips are currently only about four months old. Also have a poop deck under their roosts so the floor stays cleaner.