Hello. One of my hens is molting and hasn't been laying, which I know is normal during molt. However, this morning, I found one hard shell and one soft shell egg laid overnight, both broken open, assuming from the fall. Back in August, I found two soft shell eggs, one broken and one intact. I'm not sure who the two soft shells came from and neither hen was molting. I only have two hems that are of laying age, both are 19 months. Thoughts?