Ok, I've read and read and read and I've seen everything from 2 ft per bird up to 10ft per bird and I'm going dizzy... I'm going to build something along the lines of the Playhouse coop with a couple changes. https://www.backyardchickens.com/web/viewblog.php?id=16313-playhouse-chicken-coop The coop is a 4x8 pen with a 4x2 coop inside. I'm thinking of a 4x12 pen with a 4x4 coop. I have decided that being Norwegian I'm going to get some Jaerhon's from Ideal. They have a $25 minimum order, or 10 birds in my case. My original thought was 4-6 birds, so I could offer the extra birds up for sale locally or keep them (more likely). I plan on having a good amount of roosting space inside the pen and coop. Right now they would be sharing the yard with dogs (not at the same time) so free range time would be limited. I am trying to think of a way to divide the yard to get them a free range area that's protected. Given that they are going to be inside the pen mostly, is that too small for 10 birds?