Could this be caused by poor breeding or I breeding too much? I brought the eggs from a breeder and my chook hatched them you can see one of them in the background, note all the chicks are 6 weeks they Are also smaller. Will they be good layers if the are girls or will they not thrive. They do seem happy and are very well fed and earning all the time but e lack of development makes me wonder, that's so much to a one that comments, I am at a loss