This is sort of a combination coop design and chicken behavior question. I have three adult hens (about 1 year old now), one buff wyandotte, two silver lace cochin. They have a small coop with attached and enclosed run, plus a larger fenced open top run off that. The coop is about 2' x 4' x 3' tall with small nest box off to the side and a single long perch running across the long dimension of the coop about 10" high (see attached pics). Back when I had 4 hens (one of our wyandotte's died a few months ago) at least two or three of the hens would always get up on the roost, one would sit in the nest box and the other wold sit on the floor of the coop. It seemed like a space issue so I enlarged the top of the coop for more head room and re arranged the roost into a multi level L shaped thing to accommodate all the hens. Well it didn't work, I think it actually made it so they could not get enough room to jump up to the roost, so now they ALL cram into the nest box each night. I've reset the roost to be the single bar in the pic but they refuse to use it. The issue is they poop in the nest box of course. So... any tips for encouraging them to use the roost? I plan to replace what I have here with a wider beam. Any other arrangements you'd suggest? One thing to note is, I have a small garden type solar LED light in the roof of the coop. This was to give the birds some comfort at night when they were young, but I fear may actually be what is keeping them off the roost at night now.