OK, I have seen the recommendation of 4 square feet per bird. Is that COOP or COOP + RUN? I have a coop (wooden, enclosed, with a roof) that is 8 x 16. That's 128 square feet. PLUS, I have an attached run with free access (they have an always-open pop door) that is 8 x 24, another 192 square feet. How many birds can I "comfortably" house in these quarters? Is it 32 (based on 128 square feet of coop divided by 4) or is it more? Also, would that ratio/recommendation change with additional run size? I have a friend who has an 8 x 8 coop, with an 8 x 16 run attached. How many birds should she be able to keep, and would that number change if they increased the RUN size (but not the coop size)??? Just need to clarify before ordering more chicks this spring - THANKS!!!