I've had 6 nesting boxes for 20 chickens and always found 90 percent of the eggs in one nesting box so I made room in the coop and took 3 out and now I find 90 percent of the eggs in one nesting box still, they've never laid eggs in all three boxes in the same day. I also close up the coop every night and sometimes poke my head in to see where they are all roosting and notice a few heads poking out of a nesting box so I decided to nudge them out of the boxes, those are for laying eggs not sleeping in I told them, as I nudged them out I counted 6.
