I got three guineas last spring and built them a 4 ft by 2.5 ft coop with 5 ft of roosting space. Feeders and waterers are securely hung outside the coop, and the guineas have access to both from the inside of the coop. I originally planned to put the coop up on long "legs", but haven't gotten that part done yet. It currently sits about 6 inches off the ground. The coop is very secure, uninsulated, with a large window that can be closed in or opened in front covered with 1/2 inch hardware cloth. There is ventilation in the soffits and a hand painted sign on the outside with mirrors on it for them to admire themselves in. I kept them in this for about 6 weeks, then let them free range with the chickens during the day. I had to herd them back into their coop every night this past summer (they wanted to roost on the fence which was higher). In the fall we finished our very comfy chicken coop and moved our 5 pullets in. The guineas promptly made themselves at home with the chickens and now they won't leave. We have had so much snow that I felt bad for the guineas in their smaller coop and allowed them to be with the chickens. Now I am seeing the male guinea pull feathers out of a couple of our chickens (the RIR and BO), and not let them eat scratch. And I have three four month old EE's (including a cockeral) that need to be moved in with the other chickens in the next month or so. The chicken coop is not big enough for 8 chickens and 3 guineas, and I am afraid the guineas will hurt the cockeral. I obviously need to move the guineas back to their coop. I also know that I need to have more than three guineas to make this work, so am planning on incubating guinea eggs this spring and keeping at least two more keets. My questions are... how many guineas can I expect a 2.5 by 4 ft coop to hold, will the guineas like their coop more if I elevate it 4-5 feet as originally planned, and will 5 guineas be enough to end their obsession with the chickens? I hate to push my luck with the neighbors by having a huge flock of free ranging guineas screaming at them. I really love those guineas and don't want anything to happen to them, but can't have them picking on the chickens either. Any other ideas for how to make them like their own coop more would also be appreciated. Please don't tell me to rehome the guineas, they happen to be my favorite. Thank you!