I built a nest box that is about 33" wide and about 14" deep and about 14" tall. I figured that a community nestbox would be better than three narrow ones. The entrance is about 8" high and 30" wide and about 6" from the top of the bedding. For some reason they think it's a new roost and are pooping in the nestbox
. None are laying yet, but at about 17 weeks they could any time in the next month or so.
How do I discourage them from roosting on it? The 19 chickens have 2 roosting poles about 2.5 feet off the ground and they're about 6-7 feet long. Do I just need to put in another, lower, roosting pole or what?

How do I discourage them from roosting on it? The 19 chickens have 2 roosting poles about 2.5 feet off the ground and they're about 6-7 feet long. Do I just need to put in another, lower, roosting pole or what?
