I lost a year old hen, she was half game half EE . She laid pretty green eggs, but last month her eggs started floating, even the day she laid them. When they were cracked open they had very little white in them, a normal yoke and lots of air. The shells were normal and smooth, with no cracks .She seemed, healthy , was active and had no signs of illness, just weird eggs. Any idea, what could have caused this? I've been searching this forum, but haven't found anything like it.