Thanks for joining,
The Production Red should be first. The Barred Rock next and then the Americana. Look for the combs to get bigger and the face, comb and wattles to get pink. They will start playing around in the nest box. Get the nest box ready and put either golf balls or ceramic eggs in it. They will also start doing the "egg Squat" It sounds weird, but you will know it when you see it. They squat down and so a little dance. Mine started laying a week or so after that. If you have a rooster, they will do the squat for him.
Have fun and post a picture when you get the first egg.
Ron