I have 40 chickens (30 EE's, 10 australorps) in a coop that's 20x11 I have always had a issue with the hens laying on the floor, not all are laying yet, there 6-7 months old now. The ones that do lay, seems about half use the nesting boxes and the other half make a nest in the corner of the coop and burry the eggs, I have found 5-6 eggs in one nest buried at diff depths in the bedding before, my question is how can I correct them of this? I have 8 nesting boxes 12x12x14, they only use 2 of them usually. Everyday I take a little rake and dig up the 4 corners to find all the eggs, a few lay on the ground but don't burry the eggs also. I kinda figured they would just instinctively use the nesting boxes after awhile but not all are.