We have 9-10 chickens that have just started laying and 3 of them won't use the nest boxes. I have tried golf balls, easter eggs, changed the straw, and put the chickens in the boxes, but they still won't lay in there. The nesting boxes are 1x1x1 and there is one on the end that is 1x1x2. They just scratch a hole in the corner and lay there. So I put some rocks and a cement block there and they just layed next to it. Does anyone have any other ideas?