I read your nest artcle a long time ago @Shadrach. Even though there's no rooster with the hens I still think about their comfort while laying and I provide an abundance of straw in which the hens make a deep bowl for laying their eggs.Father and son work here. I tend to have problems with brothers.
I pretty much convinced that most hatch problems are to do with the type of nest they sit in. This will save me some typing.
https://www.backyardchickens.com/ar...e-make-a-sitting-hens-job-so-difficult.74389/
In the past, provided the nests are not discovered by predators the hens that sit and hatch in these have a good hatch rate; alarmingly so.