I have 3, 16 week BYM pullets and 3, 13 week pullets OE and BCM. I’m wondering how to tell if the older ones will start laying soon. Their faces have definitely gotten more red in the last couple days but they kinda stopped growing, the younger girls way surpassed them in size. I also wanted to know when to change their food and they are still on starter/grower but I’m not sure when to change it to layer if some are laying later than others. Pics of my older girls