My BO is 17 weeks old. Her comb and wattles are deep red and very developed. Occasionaly she has been "squatting" when i go to pet her. This morning I heard what I assume to be the egg song. It was loud and went on for about 20 minutes! Woke me up very early! I went out and she is pacing and has been in the next boxes digging around. I don't want to get all "egg-cited" if it is still a long way out...but how soon after these behaviors did your hens lay?