I have an 11month old delaware hen, she has not laid a single egg in 3 months, she is not molting, is very healthy, talkative, spunky and is a great eater. I have her on non gmo layer mash, she free roams my yard most of the day so I thought maybe she was laying her eggs elsewhere, but I have inspected every nook and cranny of my yard and not a single egg. She squats when I go to pet her, has the waddle of an egg layer but no eggs. She even sings the egg song when my other chicken is laying an egg. Any ideas why my beautiful girl is not laying? Any suggestions are much appreciated.