All of our chickens are pullets (7-10 months old). We have 6 hens and 1 rooster. As the hens get to laying age, I see them squatting. I read this means they are receptive to the rooster. Once a hen starts laying, is she receptive all month long or just certain times of the month? It seems that mine will do their squatting for a couple of weeks but then stop... I also noticed that one of mine stopped laying and also stopped squatting.