One of my Iowa Blues just laid an egg for the first time in the basement under the hen house. At first I thought she was digging a hole for a dust bowl, but she laid an egg. I waited for a few minutes and then went in and retrieved the egg. I do have nest boxes for the hens inside the house, but she didn't use the nest box. Is there a problem with her laying under the hen house instead? It's clean and soft there. Thanks for the help.