I got my first egg today. I am not sure, because I wasn't there, but I am assuming it came from the production red since she has the reddest comb/face and is louder than the others. But that's just my guess. She is also a week or two older. Other than being there, how do you know. I see folks posting that some of their hens lay everyday. If you don't get the same number daily, can you tell if you don't see them do the deed in the nest box? What is the secret?