One of my 3, 35 week old white wyandotte hens, Ruggy, has never laid an egg. The other 2 have been dependably laying for months, and although Ruggy acts like she's laying, sitting in the nest box, or the corner of the hen house, she comes out with nothing. She even sings the egg song on occasion. She's been doing this for 2 months. I've been told from a friend, that sometimes, when no rooster is around, a hen may take on that role, and never lay. I haven't heard that before and wonder if anyone out there has had this experience, or heard of this behavior.