We have a 24 week old red sex link that hasnt laid an egg in a week and a half. she was laying an egg a day for almost 2 and half weeks prior. she gets in the nesting box and sits in there for 45 minutes or so just like she would do when she was laying but she doesnt leave an egg. someone told me she was moulting but she isnt losing any feathers or anything. Anyone have any idea?