I am so happy for you! I am having the same problem and my BR looks exactly like yours. She has not laid an egg yet though and she is about 27 weeks old. I have another BR hen, same age, and she has been laying for a month. I see no outward signs that it is a rooster, no crowing, strutting, mounting, nothing. My Iowa Blue Rooster does not act any differently around this one then my other 10 young hens. Please let me know when yours starts laying. Again, so happy yours is a little girl!