I am not new to the chicken world at all, but have been without for about 4 years. I’ve just retired and decided this is the perfect time to start a new flock. I’ve acquired a dozen new Legbar pullets, they are 3 months old now. Are they old enough for me to put them on pellets now? They are wasting their crumbles, and I just can’t make them consume the food they have pooped all over! It is such waste dumping these crumbles in the compost pile!