This is the setup: I am now thinking along the same lines as you now! Man is he mad that he can see them but not get to them. I think the hens are getting a great kick out of arranging on top of the crate as well!
I have a bully Roo who I can't let mingle with the ladies unless they are free ranging. This has created a need for an additional space for him. I had been keeping him in the coop while the ladies were in the run & vice-versa but it's getting colder at night so I need to construct some sort of...