one of my hens recently stopped laying eggs in the henhouse. we thought she might be egg bound, but she did not exhibit any of the other symptoms of that, and today I caught her in the bushes sitting on 3 eggs that she had laid there like she was trying to hatch them. I don't think she could have been fertilized as there are no roosters around, but how do I get her to break this habit and start laying in the henhouse? I like to let them free range in the yard and would hate to keep them cooped up. Also, can I eat the eggs she laid in the bushes? Thanks,