Dave,
I've been thinking about that too. I think with the design I have I can expand if needed, or just add another one. The "segregation pen" is what i am planning on using for "fertilization control" can also be Roo bachelor quarters. I have a well built wood dog house that the dogs have never used that I will be converting for any Bachelor we keep around. I still need to design and build a smaller "dorm" for the hens and roo. That will probably go in either the Roo segregation pen or I could do another one. I could even build another yard, its not like I don't have the room....
My wife, Beth is already rolling her eyes, and it was her that wanted chickens in the first place. It went from Roos only for meat, to a couple hens for eggs, to the goals we have discussed. What next!?!?!
When I was a kid, we kept BRs. Keeping them in the winter was difficult at best. Combs getting frostbite, water freezing, light bulb under the waterrers, frozen eggs, dogs breaking in and killing chickens, etc. I hated it as a teenager, because it was my job to take care of them, along with the calves, dog, pigeons, ducks, etc. It took me 33 years to even consider doing it again. Now, we have heated waterrer bases, Nice rose combed Doms, better coup designs, not to mention a better attitude.