Got six black australorp hens fm Ideal Poultry in Texas and they started laying, but some are laying on the dirt floor of my coop, others are using the nests provided. Thought they would all, in time, use the nests and might yet....they have only been laying for about 3 weeks. Anyone had this problem? Solutions? Are different size combs a normal thing for this breed? Got six day old pullets, they are now 7 mo. old, get 4-5 eggs a day so figure someone is not laying or I got a rooster (hope not). No crowing and no spurs so fig. I have all hens. New to this breed but love them so far.