My flock has been laying for almost one year now, and just the past month my yolks have been breaking almost every morning when I make my fried eggs. I can point out three specific things that I have been doing differently since this started happening, although I admit that I can't imagine that any one of these things would do this, but I guess it has to be something! 1. I started feeding my girls cracked corn. I feed them less than a dry quart per day (about 2 cups), and I have 10 chickens. 2. I started giving them freeze-dried meal worms, a couple of handfuls. 3. I started letting them free range for a longer period of time, 2-4 hours, every day. I see them catching bugs and worms and frogs regularly. So if I had to guess something, am I giving them too much corn? Thanks for any ideas!