This is just some scrap jeans that had slits cut into them, not quite to the top. The two end strips were flipped over the top to open it up a bit. About 90% of the eggs are laid in this box. None of the other boxes have this privacy screen.
The funny thing is that I installed it and it did not look like it was going to work, and I was going out to remove it when I found a hen in the nesting box. So, you may need to give it a little time.