I have an Omlet Cube and had to modify it to give my hens more space. It meant getting rid of the divider and turning nesting box space over to the roosting area (and setting up a nesting box in the run - used a covered cat litter box). You can then add wooden roosting bars like this to give them something more natural to roost on:
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If you ditch the grey bars altogether, and use PDZ in the tray, it's super easy to clean too - no more poop getting stuck between the grey slats!
Yes, I have provided separate nesting boxes. My mind must have been frazzled by red mites cos I splashed out and bought two! but the chucks like them and so do I. They're quite solid with no joins, sit off the floor, and the hay inside stays dry when it rains.
Thank you very much for the photo of your setup. I's helpful to see what you've done and it's much more inviting than the original. I have two 'Go!' end-to-end, because the Cube is too wide for the run.
I've wondered a lot about the roosting bars, which seem very narrow, and my two new Shetland pullets don't like them. I just laid a nice stick in there to stop them trying to roost on my wrists at bedtime. I'd had to help one of them in, then I was stuck with both hands through the pop hole and a determined chicken on each wrist!
. I agree about the poop getting stuck and it's a pain trying to clean the inside edges of those bars.
Another problem in the 'Go!' is that the nest box is recessed into the bars, with sloping sides, and if a bird steps on the slope, she slips.
Maybe I should plan to get rid of that plastic grid and make a few low perches like you have done. I do like that the poop falls below where the birds don't reach it and I'll try to keep that if I can. In the last couple of weeks I've been using shredded paper and torn-up cardboard, for less dust, because I've just had a cataract operation . It's working well and I hope it'll compost ok.
I do need to create as much 'daytime space' in the run as possible because soon they'll have to stay in all the time. Daily cases of avian flu are increasing and some areas have already been told to keep the poultry inside.