Hello!, I have 5 chickens all hens..Free range most of the day and get locked up at night. My barred rock Is still the only one that has not laid an egg! 18 months old and nothing, she seems healthy to me and also seems to be at the top of the pecking order. She is friendly..let's me pick her up and play with her and when I enter the coop she squats for me and I giver her a little scratch I call it (chicken nasty). Dont think she is egg bound but what else could it be? Can a hen really go this long without laying a single egg? All my other hens have been seen doing the egg song and have been seen in the nest boxes.