I have an easter egger who won't lay. I've had the same six hens for about 7 months, and all of them are great layers except one of my EEs. She's about 1 year old. She has never once laid an egg. My other easter egger, who is the same age as her, is laying great. She has been sick a couple of times with something respiratory, but got over it. She still has a lingering cough/sneeze but all of her behaviors (other than the not laying) are healthy. She has energy, eats and drinks great, has a red comb, etc. None of the other hens have respiratory problems and they've been together for 7 months now. Isn't this strange? Why doesn't she lay?